I'm definitely with Charlieboy and Turboned with the black bumpers and trim. The mk1 really looks good like that. I personally think the mk1 has a very individual, almost classic look that doesn't need to be messed around with. Keep it standard'ish, but use subtle highlights to bring it up to date.
I'm not a fan of black wheels, sorry Charlieboy. They always look to me like steel wheels where the hup caps have fallen off... They don't stand out very well either. Black wheels with black tyres hidden in the dark recesses of a wheel arch. Everything seems to get lost as there is no definition. If you're going to fit nice alloys you might as well make them stand out a bit!
So go for classic silver or polished (NOT chromed, too 'bling'!) alloy wheels. Style is up to you. There's loads out there to choose from.
As for colour, yes, red is the classic colour. But, if yours isn't red to begin with, then go for a bright colour of your choice. I love Kawasaki green, especially as I had a Kawasaki motorbike in the Kawasakai racing green! And my first car was green too. All down to taste really.
I've done a really hamfisted attempt on photoshop to make a mk1 Uno turbo in the green that you like. Also blacked out the bumpers and trim more, but I didn't do a very good job. It does give you an idea of what it will look like, and I think green with black trim would look great
My photoshop 'talents' don't stretch to changing wheels for nice new alloys I'm afraid! You'll have to put up with standard alloys (that need refurbishing) in my Photoshop attempt
Chas