Separate oil, pump and filter?
I've heard of some trying it with home brew rear mounted turbos (like a DIY version of the STS setup).
Rumor has it Weldon makes an electric pump that works well in that situation.
At higher temps I don't know.
I was looking to remote mount a turbo, but didn't want a separate oil system, just a scavenge pump, heard about Weldon after I had bought a different pump.
Project went another direction and I didn't actually try that.