Pick your Reagan now and in 15 or 20 years he may be able to make some real changes. Perhaps even sooner, though it's not likely. And pick the issues you want to fight on now and in the future.
"Roll back government all along the line" isn't a practical issue. It has no priority, no point that you can press. To attack everywhere is to attack nowhere, just as to defend everything is to defend nothing.
Third Party candidates may be a valuable way to let off steam or to telegraph your disgust with the Republican, but in the end they probably cause more frustration than they relieve.
Friend, we don't have 15 or 20 years!! If our school system doesn't kill us, our legal system will. We already have a virulent anti-business culture. The govt spent much way too money trying to kill Microsoft. If I were a CEO of anything, I would look for another line of work.