Another question, if I did go for a rebuild, do they usually go through the process of removing the old cacky varnish, and re-apply some more?[/QUOTE]
Can only speak for myself, yes. If it`s a full re-build then it should be just that. Total strip down to the bare blank, prepare the blank, new blank coating (not varnish), re-spline and balance the rod, new guides, new grips or shrink wrap, reel seat or whatever, reflective tip tape and so on. Apart from decals / labels which may not be available to replace, the rod should be returned to you in factory new condition or better.
Alternatively you can simply ask for new guides put on or new reel seat or whatever you choose, entirely up to you but the extent of the work asked for will obviously be reflected in the costs. The more expensive the rod to replace or even a less expensive rod that is your particular favourite and can`t be raplaced because you dont want to part with it could well justify a full re-build.