can the face lift bumpers etc be added to a pre-face lift model?
You can do it, you'd need headlights, front bumper, slam panel, front wings, possibly bonnet too. Then get them painted to match. This is the way I'd do it as the pre-facelift rear end is much nicer looking than the facelift rear end.
If you've been looking at 02's then you have been looking at the 10v 2.4's, not the 20v 2.4's which are a totally different beast entirely. Not bad, but not as powerful as the 20v and only have a 5 speed box which hurts economy on the motorway.
I think the 5-speed is really well suited to the 2.4 10v, the gear ratios are spot on, 1st takes you to thirty, 2nd to fifty, third to eighty, 4th to very illegal speeds and 5th to bring the revs down on cruising. 70mph is 2,000rpm, right in the torque peak, if you were cruising at 1,500 at 70mph you'd not be able to accelerate fast without dropping a gear. Plus the 10v gets the nice Alfa V6/JTD gearbox that can be fitted with Q2 limited slip differential for £480, the 20v gets the notchy GM gearbox that can't be Q2'd and has weak driveshafts, so expect to replace these if you remap the beast..
Best choice is still the 1.9 16v in my opinion, nice light front end, 6 speed ALFA ROMEO gearbox that can take the Q2, even better fuel economy than the 20v, better handling & braking thanks to reduced weight, loads of cheap tuning potential seen as this engine is also fitted to the current Vauxhall Astra/Vectra.. In fact we have a member on here with 250bhp on tap..
1.9 for the win (which is a shame as the 20v could have been so much more, and sounds so much better