8-3/4 or Ford 9 inch???

i have to say one thing as far as the 9 inch it would be easier to find and cheaper but you have to keep in mind the 9 inches people are running under race cars that are bulletproof are in no way stock most have very little if any factory components left in them. If i were you i would stick with the 8 3/4 if you buy one out of a c body they can usually be found for around 100.00 bucks complete and then you can have the housing and axles shortened for around 200.00 so you would then have around 300.00-400.00 in an a body sized 8 3/4 but then you would still have to find a sure grip center section unless you were lucky enough to get one in the c body housing but then if you do you probably didnt pay 100.00 bucks for it so your prices would go up accordingly. Those prices are of course in my area i am not sure if they will be the same for you but i hope so. Best of luck to you Justin