I love my Reeves Custom 50. Bill has always said that the goal of Reeves Amps is to "out-hiwatt, Hiwatt." You get twice the amp at half the price... That's good math.
Maybe if it was one of the earliest (60's) versions of that amp, and in pristine condition, and only if the buyer is independently wealthy, and stupid.
I've owned DR103's from the 70's. Spectacular build quality and tone, to be sure. But $4000? No way.