if you run into issues returning oil use a pump

One solution would be a modified oil pan with the kit. While you're at it, slightly increase oil volume too to help with the added heat.

I'd much rather pay for a pan and have a gravity return than to pay for a pump with the kit that doesn't increase oil capacity and will wear out. That's a freebie but remember me when I ask for a turbo kit for the shop's FR-S ;)

If you guys want anymore ideas, feel free to contact me. I just do internals now.