learn to love reinstalling.
not! because your system should get trojans/virii every few months or whatever ...
just because I think it's a good habit to have.
I have very only rarely problems with such things (like, when I run adware type checking progs, i've always got less than 10 problems)...
but I like having a fresh start every so often. After a while, it just feels 'clogged' and so I just start over.
(yeah, it's possible to clean up a system w/o reinstalling...but not quite as thorough).
a fresh puter is a happy puter!
(ps) besides, what you're porposing just sounds like a mess to me, tbh.