I can't justify £10k for a supercharger install. That's what makes the N/A route for me attractive. Small little touches to make the car perform better. Currently running about 325-330 bhp.
Researching manifolds and cams atm.
Only two or three places in the UK who can uprev zeds. Uprev is the remap licence. One is Horsham Developments, other is Abbey. Not sure who third is by I think they're near Leeds.
Abbey are the best. Don't bother doing it now. Wait til you change the exhaust, install a plenum spacer, change air filters. Then do the remap. Maybe even go for decats or high flow cats (HFCs)
Any chance I could come see what your pillar looks like? Really been looking at this recently (hence some of my knowledge) and I'd like to see the finish 1st hand as opposed to on a video/picture.