IMHO
I'd be shooting for mid $xxx - low $xxxx from ImportTraderOnline.com and Import-Trader.com as a realistic sale, they're both developed but don't look like major websites with big investments into their brand.
Reseller value, mid $xx - low $xxx.
Other than the interest from them, I see this as a Brandable, a very good one, but low exacts for keywords. So I could only give guesstimates on what it would go for to a new developer with interest in the name.