4x4 steelie rims on all 4 of lowered truck

[88Stanger]

Using 4X4 Truck (6 Lug) rims and for my rims. I believe they (4) are 15x8. My question is will these work up front (the 15x8)? I have searched to see if anyone has done this and found nothing directly stating this has been done. I am painting them this weekend and want to make sure they will work. (front disc conversion going on with 2.5" drop spindles)
Also, suggestions for center caps? I have the 4 from the 4x4. The only issue is two of them have holes for the manual front end locks, so I picked up two other closed ones, so now I have 4, but is there another choice? I bought some moons with bowtie on them, but they will not fit.
Thanks for any help.