I do agree with everyone else about using the Yamaha as a pre pro with the Rotel amp, I bet it will sound great.
This is your best option.
I would say this is the cheapest option, but the best option is to sell all that bloody gear and condense it to a single usable receiver or other combinations thereof, but eliminating the mess.
Certainly cash is a limiter, but places like Audiogon, eBay or Canuck Audio Mart tend to have pretty good sale turnarounds. I'm still astonished at what some people pay for items on eBay.
