anybody make there oil pan deeper

I've never made any deeper, but I once modified a Truck Pan to fit a Maverick for a guy who stopped by the shop.

Welded the outside (after tons of cutting and making pieces by hand), and then Brazed the inside.

IIRC I charged him something like $35 or $40 for the job, and by the time it was all said and done, I made about $5 after figuring in all the materials used on the pan. I'll never do that again.