Looking for a good portable threader for rigid conduit. Up to 2" likely.

Any suggestions or links ?

common hand threaders & tripod vise arrangements go to 2" , which wheaties powered, is truely portable & economical.
Other than that, Y not try E-bay?

Like Sparky said, the hand theader is a good place to start. Rigid #12R is a good one. You can allways add a 'power pony' Rigid #700 to your wish list for about $1000.