51' 1/2ton, no power assit, dual drum drum master cyl

I would like to buy a bolt in mustang II kit later. But for now is there a stock spindale 5 lug 4 3/4 that will fit and buy 2 new drums that are 5 lug that will fit my existing brakes?


51 3100, 235 purs with T5 swap
54 Belair 305 & 700r4 few more months to go
I'm on a 1950 3100 that needs very little. A true barn find $1000