At least with the XS power wastegate it's made to a high enough quality that they are willing to put there name to it. That would bump it for me and I'd have one. Plus a scooby bummer at work has been running one for ages on his 450bhp Rb5... Hasn't died yet.
Well they charged £220 for my alfa and £270 for my Altezza, tends to fluctuate between the 2 but tbh I can't knock them! They even fixed a bracket on my alfas exhaust under warranty after I wrapped it off a speedbump! Can't knock them tbh just had the exhaust done on the birds del sol for £240
For some reason S12s are overlooked by drifters at the moment, old volvos have gone right up in value now they're fashionable again. Tbh for £300 you can get a car, it's gonna be a heap though lol
And it's the most boring car you've had? I'd rank my E36 up there with my DC2 and my old Glanza in terms of fun, it only has to be spitting and I slide her everywhere lol
Ricky at racetech is doing conversion packages soon but off the top of my head you will need: Oil filter housing off a 4EFTE and the oil feed/return for the turbo Manifold Downpipe Exhaust Intercooler Some form of ECU Boost controller (I wouldn't want to rely solely on an actuator personally) But there's the basics. Should be able to boost it with that... It's been covered a lot though bud you found nothing in the search?
You can port the wastegate yourself mate, pick up a cheap dremmel and just be careful not to go too far. A good ebc can help aswell or just pick up a plug n play ecu