So I didn't work on the teardrop, but I did work in the garage. I currently work at Lowe's, and when you are an employee you are there so much you see pretty much all the clearance items before anyone else. There was a single bulb T8 shop light with the bulb included on clearance for $5. It appeared to have been an old display model, judging from the dust and the included bulb. Sure enough, in the lighting section there were no T8 florescent fixtures on display anymore, just new "T8 style" LED lights, which were pretty cool but I can't spend $55 on a "dual bulb" T8 LED lookalikes right now. Anyhow, I snapped the light up really quick. That was a couple days ago, and I needed some sort of wire or cord for the light, as none was included, and this light is typically hardwired anyway. Pushing carts into the Lawn and Garden center I walked by the holiday display and an extension cord caught my eye. A whole box of 25 foot, 16 gauge grounded outdoor green extension cords with 3 outlet ends was on sale for about $3.80 a cord (normally $15). I thought of the light and grabbed one (I'll probably have to grab another tomorrow for general light duty extension cord use at that price!).
Anyway, I cut the three outlet end off the cord and saved for unknown future projects in my electronics junk box, soldered the wires to the ballasts and covered them in shrink wrap tubing, soldered a short piece of solid copper wire to the stranded ground wire of the cord and ran that under the mounting bolt of the ballast to ground the fixture, slapped it up to the ceiling with two wood screws, plugged it into the switched outlet in my garage ceiling the two current lights are plugged into, and bam:
New Garage Light by
jseyfert3, on Flickr
I like it. Note the garage door tracks, this light is over the front part of the garage, where I have done a bit of work for my teardrop in the past (with a portable worklight). Having light permanently mounted in this part of the garage will be nice. It is blocked by the garage door when the door is open, but I'm generally working inside with the door closed unless it's nice outside (and in the day), so that's not an issue.
The lighting in the garage had previously consisted of the garage motor light (shown, one of two currently burnt out), and two 150 W x2 halogen light fixtures, one of which is in the picture, the white light behind the garage door motor (not currently on). The two halogen lights pull 600 W total when both are running, plus new bulbs are $7 each. In addition, I typically ran one or two of the lights in my portable halogen worklight when building, for another 250 or 500 W, for a total of 850-1100 W of lighting while working on my teardrop, and last spring I spent many hours working on it! This shows quite well here:
Electric History by
jseyfert3, on Flickr
Note how Jan-April (green, 2014) are
higher than Dec (gray, 2013) or May (green, 2014). I heat with gas.
I did usually run a space heater (unheated but tucked under so well above freezing garage) but typically shut it off within 5-10 minutes of working out there and the activity kept me warm, as well as those power hogging lights. I typically ended up working in a T-shirt IIRC.
If I get a good tax return this year, and my finances have settled down, I may consider a nice set of those LED shop lights that Lowe's sells, 6 of them would give great even light over the entire garage for working on projects, no more moving portable work lights around. That would be $300, but would be a combined 240 W total (vs 1100 W I pulled last year), produce a combined 21,600 lumens (vs 18,200 lumens for the halogen ones last year), and a rated life of 35,000 hours. Hmm...
Anyhow, the plan is to start cleaning up the garage under the light I just installed. That's the majority of the stuff that remains to be cleaned, and so after I get that done I'll be almost done with cleaning and can start resuming work on the teardrop.
I've checked out your spreadsheet and it seems you've left some things out. How much canvas have you used and what size? How many sheets total foam have you used and how long is your foamie? 
