Looking for a extra capacity transmission Pan

Does anybody have an idea where i could find a good extra capacity transmission pan thats not over priced? Im looking for one that will hold at least 4 extra quarts of fluid. I dont need any fancy finishes on the pan, just the ability to hold extra fluid. 92, K2500, 350, 4L80E
Thanks for your help!

Summit has a wide selection. Why do you need the extra capacity?

This truck is one that I will be using to Plow snow. The extra capacity will help in keeping the tranny cool

ever thought of putting a tranny cooler instead?

That's the direction I was heading in, but didn't want to sound stupid if there was some other reason I couldn't think of. A cooler is probably cheaper, not much harder to install, and a better way to keep the fluid cool (I've seen regular trans pans that had dents in them, not to mention what might happen if it's 2-3" lower. If you decide to install the cooler instead, just be sure to route the fluid through the new cooler first, then back through the radiator cooler so the fluid stays the right temperature. Having it go through the new cooler second will cool it too much and possibly cause some slipping.

That's the direction I was heading in, but didn't want to sound stupid if there was some other reason I couldn't think of. A cooler is probably cheaper, not much harder to install, and a better way to keep the fluid cool (I've seen regular trans pans that had dents in them, not to mention what might happen if it's 2-3" lower. If you decide to install the cooler instead, just be sure to route the fluid through the new cooler first, then back through the radiator cooler so the fluid stays the right temperature. Having it go through the new cooler second will cool it too much and possibly cause some slipping.
You are saying the transmission will slip in cold weather? I've driven many vehicles in freezing temps and never had a trans slip because the fluid was being over cooled let alone on a cold start. I'm confused by your comment?