Just for fun I took shrugs list of parts and tried to find canadian sources to figure out a price. First off I found that most Canadian websites don't list prices. You'll see references to timbertown flyer, these are prices taken from a flyer that came to my door. The windows are the killer, definitely have to find a better source before we start to build. This is not meant to be an entry, unless you are going to run a Canadian version.
Trailer 4 x 8 canadiantire.ca 0408012P (1) $449.99 $449.99
Birch Plywood timbertown flyer (7) $49.99 $349.93
4 x 8 x 1/2'' shop grade
chrome locking L-handle go-rv.com 40229 (1) $11.99 $11.99
inside L-handle go-rv.com 43030 (1) $2.99 $2.99
HD draw pull catch go-rv.com 41730 (2) $9.99 $19.98
12x18 slider windows go-rv.com 62654 (2)$184.95 $369.90
woods double burner stove canadiantire.ca 76-2652-6 (1)$59.99 $59.99
36 qt. coleman cooler canadiantire.ca 85-3400-8 (1)$34.99 $34.99
water jug canadiantire.ca (1) $6.99 $6.99
continuous hinge 2 x 72 go-rv.com 41735 (1) $19.79 $19.79
continuous hinge 2 x 48 go-rv.com 41734 (1) $13.39 $13.39
Rustoleum Primer (2) }
Rustoleum Paint (2) } can't find a cdn. source online
rubberized undercoating (1) }
Vantage arctic oak panel timbertown flyer (4) $8.99 $35.96
Rona carpenters glue rona.ca (1) $7.99 $7.99
garrity closet lite canadiantire.ca 0653001P (2) $10.99 $21.98
R5 2 x 8 insulation sheets rona.ca (8) $9.77 $78.16
door insulation (haven't found yet)
Total $1,484.02
And this still isn't skinned!!!