Geez, that's tough. I have a few friends that build models on commission and have quizzed them about what to charge for commission work, but don't know if that would apply to this the same way.

Even when it comes to the unbuilt kits, yeah, if it is still in production, then basically the MSRP value of the kit, but what if the kit is no longer in production? Some insurance companies will take the value as seen on Ebay, but that doesn't mean what they are selling them for, just what they want.

I know I have a few pick up truck kits in my stash that I could put on Ebay tomorrow and likely get $100 each for, simply because they haven't been re-issued in 25+yrs and are hard to come by, but if they house burnt down tomorrow, I don't know if my insurance company would agree with my assessment.