Nice motor mate. If you got the bonnet extension (where from, got a link?), the a badgeless grill would be the way to go (maybe modded to 1 bar).
As for the engine, depends on how far you want to take it, lol. There are many many options with varying degrees of expense. As said before, a simple remap will get you about 200 BHP with your standard turbo, the K03. You could upgrade to the k03s turbo from the AUM and AUQ engines (same as on 180 BHP models). This, a silicon TIP, and possibly slightly bigger injectors will see about 230 BHP.
Andd a FMIC, and a sports cat (mine is miltek) and you could be looking upwards of 250 BHP. None of the parts (except exhaust and FMIC) should be too hugely expensive, so part list can be built up over time. A custom remap on this and your looking at pretty much a stage 2 conversion. I have just done all of the above and am very happy with the results.
Obviously, suspension and brakes would need upgrading aswell. R32 brakes maybe??? ARB's etc are possible. Wow. LOADS of money, lol. Oh yeah, I needed a new clutch aswell.
If 200 BHP is fine, then go for it, get a remap. But maybe look at getting it from a reputable dealer who would be willing to discount should you decide to take the car further.