17” wheel and tire combo fit?

The fronts might fit. If they're a 17x8 a 5" backspace is about the minimum you'd need. Tires are a little short. With that tire they might be a 17x7.

Rears will not fit with what you've got. With a 7.25" rear the rear end will be too narrow for that backspace. A 17x9" on a 7.25 can't be more than 4.75" of backspace. I know, I fit a set of 17x9's with a 5" backspace on my '74 Duster with 275/40/17's and needed a 1/4" spacer just to get the tires not to touch the springs. You'd need a wider rear axle or some 1" spacers to make that work. Even then, 275's are about the widest you can go without any kind of cutting/rolling/trimming with the stock spring locations.
Thanks for the info
So I need to at least get a 1” spacer for the rear? And some trim/clearance mods on the rear and maybe front fenders