There's a few places to put the battery, including on the scuttle or in the nose by the steering rack. The former is low but out front, and also awkward to reach for those jump-starting moments which I'm informed are pretty regular occurences. The scuttle is good but we're trying to keep it uncluttered - especially as we're planning to put a huge air filter there some day. So we decided on the wall in front of the passenger footwell.
First we riveted in a plate to the chassis tubes to help take its weight, and covered this in foam strips from Clarkes. We then got a steel bracket made up to enclose the battery and bolted this to the footwell wall. Rob from Meridian fabricated the bracket as it's something they've made several times before and it fitted nicely. We had to take a bit off the edge of the starter motor and cut a resess in the bracket to allow for a bell housing bolt - we expect the engine to rock a bit under torque and don't want them to touch. All in all the hardest part was drilling in a confined space and a right angled drill bit was a big help for this. We still managed to scuff the bracket but rest assured this will be tidied up soon!