dont know what to do

[lifted 75 k5]

i have a 75 chevy blazer with an 8 inch lift and i just put a 205 in it. i called to get a price on a new driveline the price came to ge around $350. i also need a new yoke for a 12 bolt rearend and the driveline guy said around $75 for that. this is going to cost alot so is there anything else i can do instead of buying a brand new one. would a junk yard be a good idea or should i try to make my own. also on the back of the 205 does there have to be a cv joint i didnt think so but i was told otherwise. if you could help me out i would greatly appreciate it.