Battery Relocation pics?

Can anyone share a kit that they've used successfully?
How about a switch that will do the job?

I've decided that the relocation kit is the absolute next thing that I have to do since my positive cable is toast and replacements are as much dough as a whole relocation kit...for whatever damn reason.

I've never done one of these before. A few questions come to mind:

How did you affix the cable to the underside of the car? Do most kits include some kind of clips to accomplish this?

Where do you route the cable to cross over the drive train to get to the starter? Presumably at the rear...but how did you insulate the wire where it passes the header/head pipe?

NHRA requires a metal case and a switch, correct?

Kit should have 20' of 0g or 1g wire for the positive cable?

Not properly venting the battery can have the added benefit of giving you hydrogen fuel cell power?

Drag racers will want the battery as far back as possible but road racers would want the battery closer to the center of mass...so closer to the seatbacks?

Thoughts on any of these questions would be appreciated.