Bob's idea on the g33/40 is pretty cool but I don't think I'd go that route because its damn near impossible to find one and they are spendy!!!! The build i'd like to do would be pretty simple: I've got a newhaven built classic sporter I'd use as the foundation, I've always wanted a 308 norma mag for some damned reason so it would get a 24" medium weight fluted stainless barrel of good manufacture and then I'd throw the thing in a mcmillan hunters edge stock and top it off with light weight talleys, a leupy vx3 4.5-14x40 with CDS on it and call it good. It would start life looking like this:
It is a 30-06 and shoots like this right now so I may just have to wear out this barrel first:
It will end up looking similar to this someday: