If you're trying to sell the kit, make sure you include reference to Max's excellent article in the PRRTHS as to how to actually put it together.
It's worth at least as much as the kit, and has been memorialized here: The Keystone (PRRT&HS) - Vol 31, Number 2
Someplace there's an online .PDF of that article, I can't find it.
It's the only way I ever got mine finished.