Stephen,
I have another Isolation switch in the engine bay just in case. Sorry no photo's of this in my gallery, I will try and do one tomorrow.
Rocket battery I think was about $90 - $100 (I got it pretty much wholesale), and I am pretty sure it is just a sealed type but it does have an condition indicator panel on top. The selling point for the battery was the CCA of 550amps most batteries of this size are 450 or less. It comes in handy when I haven't run the car for a while and takes a few more turns to get her running. This is probably not as much an issue with the fuel injected engine you will be running. So far the battery has been excellent. There are plenty of other options but they usually mean more $$$
Mike,
Thanks for the comment. There was just a little cursing and swearing trying to decide how I was going to fit it all into the side area.
Cheers
TC