wheels

[Guyz55]

I am in the process of upgrading the front brakes of my 55 3100 and I would like to stay w the 6 lug hubs ...as that's what I have on the rears ....the thing is ( and everyone probably knows this) , the selection of nice 6 lug wheels is limited ...at least that is what im finding .

I am being told I need the following wheels ....15 x 7.5 wheel size and a 6 x 139.7 bolt pattern ..( not sure what that means..exactly)..

or should I just bite the bullet and put on 5 lug hubs on the front and upgrade the backs later ? just not sure

so if anyone knows which supply house I should be checking out please let me know ..or if any one has any ideas on how to get around this id appreciate your ideas