Buy 10/92er 4.2 with 300 TKM or not?

Hello Audi friends,

I've been looking a lot at this forum for the last few days. Great thing! I'm about to get me a good old V8. Current offer:

Price: EUR 1.950
Mileage: 300,000 km
Power: 206 kW / 280 hp
Fuel type: Petrol
Gearbox: Automatic
First authorisation: 10/1992
HU: 7/2008
AU: 7/2008
Air conditioning: automatic air conditioning
Color: Silver

Equipment:
ABS, four-wheel drive, El. Window lifter, El. immobilizer, leather equipment, light metal rims, metallic, check-booked, sliding roof, seat heating, cruise control, central locking

Vehicle description:
2xAirbag, servo, winter ice + ALU, radio+ CD, good condition


The car should still be in a very good condition for mileage (renter car). Interior should be very well maintained. Technically, he probably has the problem that he goes out after half an hour and only runs again after a long wait. OT-Donor/Speed encoder? I've read some reports about it here. Seems to be such a problem. How much effort is it to change the (both)? Can anyone describe the difference between OT-gender and speed encoder? ...and also say where to find them? They're supposed to be two. One on the crankshaft housing and one on the AT transmission. Is that true? Here I read that both can sit close together and be changed together.

Finally, I would like to know if the car can still be worth the money if all the information is really correct.
==References====External links== 25-30TKM good. Otherwise, the car runs quietly and everything works. Checkbook is almost gapless.

Another one, does anyone have a good V8 to sell here? Does really want to have one :-)

Thank you very much

Damien