Tire and wheel size questions

[JT Wild]

I'm resurrecting a 1969 440 R/T charger, in so looking for some guidance on how large wheel and tire I can safely place under it. I'm looking for some reproduction magnum looking wheels that came on it originally in 17" pr maybe 18'.
I also need to add that I'm using a QA1 both front and rear suspension. Also using the original 8 3/4 rear end
Has anyone out there have some input that may have done much this same direction?

PS i'm not shy with the windshield and roof covered these photos are just how I found it.

Thanks for you help GUYS

 

[JT Wild]

I should also add that I'm not looking at Tubing the rear or even mini tub. Trying to figure what will work with out rubbing
Thanks again

 

[RemCharger]

Are those 14s on there?

 

[JT Wild]

Sorry I don't know (i believe so) but I will ask, it is stored at a friends and get back to you if they are 14 or 15