also some other things. 29k is not high mileage. These aren't Ferraris, not sure why that perception is there (for many)? There are elises and exiges over 100k, many many are over 50k nowadays, there are plenty of Evoras over 30k and higher, and in Europe cracking 100k now. They run well, forever. Even the clutch. I had my clutch replaced due to a defect, but the clutch surface itself had loads and loads and loads of life left...we're talking 100k plus at the rate I was going. And I DRIVE the car. Don't abuse it. 20k miles currently, has seen plenty of stop and go and aggressive driving.
Also, you are approaching your pricing completely wrong IMHO-factoring an "8k clutch job" into what the car sells for is totally incorrect--that is not the dealer nor the market's problem. That is your problem to factor in when budgeting for the car on a personal level-I'm not trying to rag out on you but this is just in general for owners of these and the Elise Exige platform cars, having owned both. You see it often, people buy the car expecting not to have to pay more for maintenance and parts...these aren't really cheap cars to maintain. It is the reality. In general they are cheap, but things can get expensiv quick (you rightfully point out a clutch if it does need one). That should be on your mind, but don't expect it to effect the price.
If it were something to be factored into the price, you could argue a Ferrari 355 F1 should sell for 10k less because it needs a valve job every 3 years and a new clutch every 10k
miles..
again just to be clear---not ganging up on you at all just trying to put thoughts out there for public consumption, having at this point seen plenty of owners float in and out of both the Evora and Elise community