Or you can do what I did;
buy whatever you want up to ~295s, get the tires mounted on whatever appropriate wheels you like, up to 10", remove the rear end out from the car, slide the new shoes in and measure the flange to flange distance, then get your rear end narrowed to fit. You will need no less than 3/8" from the sidewall to the inner tubs. You will have to move the springs over a bit.
Yes 295s will fit inside the tubs with no rubbing, even lowered.
Yes you can install 295s on 10s, but for long tread-life, you will have to reduce your tire pressures to about 24psi or less. Honestly, if I had it to over, I would mount them on 12s so I could run a tad more pressure. Or
I would just run 275/60s on the 10s
