I was happy with my S300 Courier Cranks on my 722. I've also been happy with my Omniums. Honestly, any of the
cranks at retro-gression would be fine.
For other components, I'd recommend you look around the "Post your SSFG Photos" thread on here and on Pedalroom.com and see what type of components other people run and like. I don't want to tell you all the parts you should buy for your bike because then it would just end up looking like
my raw 722.