If by reasonable price you mean five or six hundred bucks, buy it and drive it until it quits, then walk away, it sounds like a plan. I would never put any real money or effort into an Audi. The ones I've been under the hood of were not mechanic friendly at all, and they don't offer any better driving experience than Mercedes or BMW.

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Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 401,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 26,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.
99 Mazda Miata 183,xxx miles.