Stan, That's an awful lot of plumbing! Are the benefits really worth it?
Just wondering
That depends on your definition of "worth it".
The stock oil system is a cruel joke. The relief pistons were actually where I took a good hard look at what the Sainted German Engineers had done - and decided that, while clever, the entire thing was a Rube Goldberg arrangement relying on changes in viscosity to determine temperature, and other equally archaic and backward solutions to straightforward problems. It's what prompted me to head off in many, many other (non-approved) directions.
I like how my setup works. My oil stays really cool (but not too cool). My oil pressure is very, very good - never over 80 psi, never under 20. It's nearly impossible to run out of oil. I can run the car at least 1-1/2" lower than anybody else and still not ever hit my oil sump. I can pre-lube my bearings before start up (I flood the engine with oil for 10 seconds before cranking - my oil pressure is 20+ psi before I ever turn it over). A dry sump picks up a bit of power over one that's whipping up oil.
What I like most is that it fixes a lot of the Mickey Mouse stuff the SGEs baked in the cake back in pre-WW2 Germany.
So... is it worth it? If you're like me - yeah. If you weigh everything on a cost/benefit spreadsheet, probably not.