They look great. As with all new home built forges, the improvements just keep on coming. If we don't improve, we stagnate. So many times I have made changes only to make more changes. It is a never ending process and part of the craft/trade. We all are looking towards the next upgrade or new tool.
As you said, when the zombie apocalypse comes, you will be ready. Guns run out of bullets and chainsaws run out of gas. You never have to reload a machette. :P