A-Body 8 3/4 open gear 741 case

So I went to our clubs yearly junk yard run and found an 8 3/4 A-body rear end. Open gears and 741 case. I asked the owner what he wanted for it and he said $450.00! I replied OUCH! I know its the much sought after A-Body size, but it is the weaker 741 case AND open gear set.

Is that a fair price? I did not think it was, so I will wait a bit and try again, flash a couple hundred in the air and see if he bites. Otherwise I am still looking! I don't need the strongest or suregrip right now, just wanted to get something I can build up over time.

There is a 62 Lancer in the yard with a 8 3/4 741 case, but it has the tapered axles (crown nuts on the outside center of brake drum). Can these be retrofited to the standard axles and brakes? Might be the cheaper way!

Thanks for the idea's and all!

John B.