What trim rings for 15×10 rallye wheels?

Hey guys, I've got a set of SBP rallye wheels on my 72 duster.

My fronts I believe are 14"x6" (not sure of backspacing off hand)......Im sure finding trim rings for the front wheels wont be to difficult....but its the rears I am worried about.

The rears are 15"x10" with a 5.5" backspace I believe. They are a pretty deep dished wheel. And the largest chrysler style rallye wheel trim rings I am finding state they are for 15"x7".....which I am assuming will be to shallow for my wheels.

I have heard 15"x8" trim rings work for 15"x10" wheels but I am not sure if thats true or not.

so I figured id ask you guys what my options are?.....will any trim rings work?.....is the only real difference in the chrysler style trim rings the exterior design?.....or do they use a different style clip/clip location....or?.

I see summit racing looks like they have their summit branded trim rings in some deeper depth rings (2.75" deep ring......which I am still am not certain will work for my wheels until I can get the chance to actually measure the exterior depth of my dish).

any help from someone who may have been in the same boat as I....or that knows a thing or 2 about this kind of stuff would be appreciated. Thanks guys.
Author: xmoparx