Corrosion can be problematic and parts are starting to become scarce. On the plus side as you're looking at an 83/84 model it should be tax exempt.
Go for it I'd say. You only live once.
Hi Rob if it's bought within the last 30 days then the dealership fix any issues free of charge.
What have you tried so far?
It could be a door seal, dropped door due to hinge, window seal, loose door trim
It will be expensive. I'd recommend you speak to Audi retrofits or autologics as members have used them for retrofits and been pleased with the results. Here's a rough cost:
https://vagcodingleicester.co.uk/shop/audi-a5-s5-rs5-b9-virtual-cockpit-mib2-pro-retrofit-2016-2019/
Definitely a tough one. My poor A6 has now sat nearly 2 years. As I say it's the coding nonsense that's the problem. Gone are the days where you fit any engine you like unfortunately
To make this work ideally Yiu need to change the headlights the modules etc and then have it all wired in.
An easier option would be to fit so e aftermarket ones and have them wired to a separate switch.
Great spec you're looking at and good idea playing safe with a manual gearbox. Check service history of any car you're looking at including when cambelt and water pump were last changed and gearbox last serviced.
You'd be mad to let it go over 5 years. Just had mine done on my 8 year old ford Kuga which was originally 10 year interval and belt was already cracking badly.
Major concern in my opinion. Plus another factor is whilst a petrol/diesel car has fuel the driver is relatively free. Whereas the government can just turn off the car chargers remotely due to smart meters. Same for home energy use eventually
Kev does raise a good point. You'll know if it's a sticking caliper as the brakes will feel hotter on the side it's pulling when you stop and turn the car off