Welcome to the site! That's a nice looking SH. Very clean!
I saw you plan on running Teins (Flex's?). As an alternative, have you looked into the Koni Yellow + Ground Control Coilover sleeve and spring setup? It's very affordable and does wonders for the car's handling, especially if you run a slightly larger rear sway bar.
Enjoy that thing!
Edit: I'll second PreludeVTEC01's comment about wheel size. 18's look nice but add a lot of rotating mass. I'd recommend sticking with the factory 16's or finding a much lighter 17" or 16" wheel. These cars will fit 18" wheels but looks aside it's better to stay with a 16" rim (or 15" if you like autocrossing) that allows you to run a wider tread.
94-95 Mazda RX-7 16x8 rims are an excellent upgrade because they look very much like the Type SH rims, are considerably lighter (13.5lbs each vs 21.5(I think) for the SH rims) and easily allow you to run 225 width tires on the street, which looks great and gives the car added contact patch with the road.
I also recommend switching to Goodridge stainless steel brake lines and a better brake pad such as the Hawk HPS. The oem brake pads are OK for normal, calm driving and not much else.