I'm planning on doing a SS conversion this winter. The bike is a 1986 Specialized Rockhopper. It has 126mm rear spacing. I have the stock wheelset but haven't picked out a crank. Anyone have an idea on what crank/BB would work? Originally they came with a Specialized/Sugino triple with a 122mm BB. The stock crank is long gone.

This is going to be a budget build so try to be reasonable in your crank/BB choices.