I know where you can source exchange performance sumps. They are not a cheap item but are cheap insurance against oil starvation issues. They are baffled and winged to increase oil capacity and help prevent oil surge.
Your looking at around the $400 mark ( They are VERY time consuming to make properly, properly being the key word ) Just depends on your budget and how serious you are about the build.
Thanx for that Rod. If you could give me some info I would like to look into the sump swap. I want to build things right the first time cos there is nothing worse than getting the engine up and running and something going wrong that could of been prevented by planning.