JG the problem that the small govt Republicanism is that its alot like Communism. It only works in theory. Everyone wants THEIR issues addressed. Whether its the potholes in the road outside, or keeping those pesky minorities, gay and otherwise at bay. The only way for EITHER party to address these multiple and mutually exclusive interests is to buy them off.
Lets just say for the sake of argument that it could be done, where would you cut? Military spending ie Iraq? Entitlements perhaps, those are a conservative favorite! Education, who needs it, other than to read the bible of course. Road building, ah you never really wanted to leave Texas anyway. Ooooh ooh I know, the UN! Yeah lets get rid of the UN! See what I mean?
