It sounds like you want a GI guide rod and recoil spring cap. As far as grips, take a look at the "Nice Grips" thread. You can also google "1911 grips" and find a whole world of grips.
If ye love wealth better than liberty, the tranquility of servitude better than the animating contest of freedom, go home from us in peace. We ask not your counsels or arms. Crouch down and lick the hands which feed you. May your chains set lightly upon you, and may posterity forget that ye were our countrymen. ― Samuel Adams