Small bolt pattern Brakes.

the 10x1.75 rear drums are hard to find period. i have a used "bell" set that can be cut and used but are thin, still i hoard them incase i ever need a set because they are that hard to find.

in general though its better to convert to large pattern, but that could set you back about 650ish if you do all the work yourself ($350/axles, $100 new drums, $100 for backing plates, $100 for new shoes, hardware and wheel cylinders) i am guesstimating the parts prices but you get the point. and this is just for the rear.