LoL... i'll be using a blowdryer.

A good, pointy "1200W" blowdryer may be hot enough to do the trick.

You're putting the most thought into this that I've seen so far and you'll have that nice CH-2 box (I may not be able to resist redoing mine with one of those!), so I'm betting you'll wind up with the best box yet if you don't watch out.

Resist the (electrical tape) Force, Luke! Granted, this won't be in an exposed environment, but good heat-shrink does a much better job of sealing connections against air/oxygen (and thus oxidation). Electrical tape, especially when warm, has a habit of loosening up. I did use some electrical tape on my AC inlet 'cos I ran out of 1 1/2" heat-shrink...

As if I know anything about electrical!