Will Cragar 15x10 SS fit on my E100

Looking to buy new tires/wheels for my 1970 Ford E100. This is what I had in mind, but not 100% sure if they will fit. Wanted to order them online but need to know if there'll be clearance. Anyone out there running this on their Econoline?
Also I installing Gabriel Hi Jackers Shocks on the rear and Gabriel Guardian Shocks on the front.

Here's what I was thinking

Rims -- Front 15x7 Rear 15x10 Cragar SS!!

Tires -- Front P215/60/15 Rear P295/50/15 BF Goodrich Radial T/A

Welcome to the site.
First, your van is newer than the focus of the vans on this site. You may get some help here and you are welcome to visit, but for tough stuff you might want to try a 69-74 Econoline site.
http://en.wikipedia.org/wiki/Ford_E-Series

Second, If you had spent some time looking at previous posts, you have come across some wheel/tire threads.
Generally, there are VERY few vehicles that can swallow a 15X10, and even then the offset is important. Yes, you can jack it up in back and have them stick out. You can also 'tub' the back of the vehicle and fit huge stuff.

No, not without chassis modifications.