Ford 9 inch, pro's and con's

I have a ford 9” from a lincoln versaille with 4.11 gears, trac-loc and disc brakes, fresh rebuilt that I bought for 650. This was about 2 1/2 months ago. I had a b body 8 1/4 in my dart and between the tires rubbing and the 2.45 gearset it had to go. The cheapest 8 3/4 for A body I have seen in the Sf bay area in the last 8 or 10 years was 850, and needed backing plates and drums. Just a housing will be 3-450 on average with no axles. Thats craigslist and offerup pricing. You will pay in the range of @900 to as high as 2800 for and A body 8 3/4 out this way. My lincoln rear has perches 43” on center, and discs. With a prop valve change this was the best deal in town. No fear of my little 380 hp breaking anything! Lol fwiw.