That's awesome man ! Sounds like a bit of restoration project then power gains - which is awesome nonetheless. Nismo kit looks amazballs and prefer it more than the ztune kit (deep pockets for them). I've always thought the R34 GTR needed to be slammed to compliment a nismo/ztune kit - but of course, like most things, it's an opinion.
Can you explain the double din dash conversion a bit more? What will you be getting instead of the Sat Nav, tape player? Just removing, I'm guessing the sat nav feed goes through the MFD?
Very keen to look over the GTR, have never been able to actually look inside one in person.
As for meets, we have a meet every Friday night (whether it's hot or cold - the location normally changes). The hot meets are normally at Grevilla park (City) which we all stand around and have a chat while looking at people's toys and the cold meets are normally undercover to break the wind-chills. I believe Eji picks where the meets are which best suit the conditions, I have not been for awhile so unaware where the current meets are being held.