Oil pan options for '99 Magnum 360

Looks like I have two basic choices, buy a new pan or use a different gasket.

Looking at pans, Summit has a stock replacement pan http://www.summitracing.com/parts/SUM-G3536/ but perhaps I can add some volume

Milodon has a few pan options, including a stock replacement for $132, and much more expensive race pans, which I am sure I don't really need

Kevko has an M302 pan that will fit http://www.kevkoracing.com/mopar.htm, it is a 6-qt pan and according to them, negates the need for a windage tray - I like the idea of slightly larger capacity w an HV pump for a street machine

Alternatively, I can keep the current pan and use a different gasket, cheapest option, but I like a 1-piece gasket and am not sure if one exists for my application - does anyone know?