Personally I think that is a bit high in this market. I'm building a 71 Challenger right now. Be aware that many items are 71 only and hard to get, expensive and not reproduced. Items like the grill, head light bezels, tail light assemblies, side scoops (original ones), etc. There were less 71's produced than 70's so less availability on some of the items.
Any pictures?
Wes