Well, I actually started off with a 20L BM. With regards to a 15A socket, my brother is an apprentice electrician, so at some stage I could always exploit this if he comes across to NZ - but yes a little bit of a hassle. My main issue is drinking 2 fermenters worth of beer (which at the moment is fine as I do split batches with friends) and I'm always keen to experiment and refine recipes. Whilst I could use the shorter malt pipe, my experience is the dead volume in the 50L is really optimised for a full batch (unless you're using fresh flowers and you've got something to assist filtration or if you have pickup tube, to grab the last 6L or so).