Complete bare metal restoration. Or not?, Opinions? Pitfalls? Options

[stevegm]

We are getting ready to have the little bit of rust in my '71 914-4 fixed. There isn't much rust. The car is in pretty good shape, and was complete when we bought it. Here is the build thread - http://www.914world.com/bbs2/index.php?showtopic=242895

Just curious on your opinions/experiences:

Should we do a complete, bare metal restoration. (i.e., remove every nut, bolt, wiring, etc.). We would do a complete media blast of the entire chassis, which is attractive.

or

Not remove the suspension, dash, wiring, and work around it. In other words, leave the hard to remove stuff in. With the latter, we would leave a lot of the original paint in the nooks, crannies, etc. But, it would be a lot easier.

I know that many say that you should not do a complete tear down restoration, because most people don't finish them. But, I have the time, and want to do it right. The car isn't one I am planning to sell. It is a keeper.

Opinions?
What are the biggest reasons you see people not finish their complete tear down restorations?
How long did you restoration take? What were the biggest slow downs?