That deal really gets my vote. Shelf stock rods, and the most common bearing and pin size out there, and with a four inch stroke about a 1.435 Comp height. I bet there is a shelf stock piston close enough to make a nice package?
Edit; Ross 99906 4.375 bore, .990 pin, 1.421 ch, works with a cometic .027 gasket and a 9.970 deck height for a .000 deck height combo. Flat top, 13.6 compression with a 64cc head.