I use a March pump. It's mounted on the stand right in the middle on the bottom. Before I had that, I used a
wort wizard. I went with the low brew kettle height to try and keep the overall height down. If you want more details on dimensions, etc., send me a PM. I'll be glad to help out. I also helped Dad build one and we used hard plumbing on his. I like that design better. Here's a few pics to give you an idea of what his looks like. I can give you some details on that, too.
Cheers
