Those are some sweet tracks, got em on my ausf A.
1) If you use CA just apply a small amount to the end of the wire where it enters the link and use thick (gel) type CA to prevent it from wicking down the wire into the links.
2) Soldering would probably work if you use a low heat iron and low temp solder. The metal that the links are made of is very similar to solder so testing would be good.
My set came with enough links to do both runs plus enough to replace all spares (turret and hull) with some left over so you should be to experiment and not come up short.
Edit: Kenneth beat me!
I need to type faster!