How to change my small bolt pattern to big bolt pattern

Im going to gess that the wheel pic is just to show the size of the rim that you are leaning twards? I did a front and rear small to large bolt conversion also. I got the upper control arms from Ebay witch you will need, I beleave the calipers and disks i got at NAPA any 76 or above parts number for the dart, or duster with dicks should work, as for the larger rear drum and the Axels for my 8 3/4 391 posi i got them from Doctor Diff, the axels came with the berring already pressed on, i bought a few pices here and there and once i had it all we did the conversion. if I had to poke at a price 550 600 range.