Best of luck with the search. Just try to be patient as the J-spec cars do come up in manual and to be honest, imo, each one that you like teh sound of, be prepared to travel to view it. Keep an eye on Autotrader, Piston Heads and search the classifieds on this forum on a regular basis and I'm sure you'll find what youa re looking for. Also contact Jurgen of JM Imports (in the traders section of the website), he has a very good reputation and may be able to source what you want quickly.
FWIW, I spent over 1 year looking for my UK TT, I can assure you the cars I saw in that time, including j-spec cars the wait for mine was worth it.