I am not quite at the point of being ready to get my TD VINed and registered and all that, but I am a little concerned about what components are classified as "Major Component Parts" for a trailer. I pretty much built everything so far, and my only major purchase was the axle. I have receipts for the metal that makes up the frame, since frame is listed on the WSP site. I bought my axle via ebay and either didn't get or have misplaced my packing slip for the axle (it was packaged a little oddly anyway since it's an awkward item to ship). The WSP site says ebay receipts do not count and they need an invoice and packing slip.
Does someone with experience with registering in WA know what I might need? As far as I can tell, the business/ebay seller I bought the axle from is still selling, so I can contact them about getting the info WSP needs if it comes to that. Are they going to make a big deal about this? I want to start sorting this out before it gets to a time crunch, especially dealing with government entities.
Other than the axle receipt, I think I have kept most of my receipts as I go along. Maybe I can inundate them with all the rest and they'll be satisfied.

*Edit: I should add that I was able to find my confirmation of payment via paypal, and maybe in conjunction with a copy of an invoice from the original seller I will have what they want. I might want to contact the seller and see if they can scan me a copy or something. Normally a business would keep track of that kind of thing.. it hasn't been a year yet since I got the axle.
Never mind the maneuvers, always go straight at 'em. - Horatio Nelson