those rims man are shot, all that rust around the ring surface is a big problem, these rims are usually 10x worse on the inside then they are on the outside... sorry man
I have 2 big rims that im not planing on using that are the chevy 10 lug pattern, if you are interested let me know, you can have them... we would need to verify the center hole opening though.. there are a few different diameters..