Sump wells for Pondless features

[clubdude]

I am in the process of building my first pondless waterfall/stream, as I have posted previously. You guys are the best, but we know that about pond lovers, don't we? I have had a hard time finding a sump well for my pump. Mine is the torpedo type that has horizontal inlets/outlets, and all the sump wells that I have found locally are vertical. I bought one, and tried to modify it, but I ruined the structural integrity of the well, as I suspected I would. It would seem any sturdy plastic housing would work with holes drilled all through it, but I haven't found the exact one yet. Any suggestions????