I have recently gone through the whole buying a 997.1 ordeal and have emerged through the other side intact.
I can portray my experience and findings if you like, This is fact because it's actually happened and I'm not sat here chewing my finger nails to the bone anticipating sudden engine failure,
I bought. C4S, the dreaded 3.8 ! with factory Aero body kit, quite how this happened is the only anomaly in the whole saga as I didn't look at 1 until this popped up.
It's a manual.... ✅
NO Sun Roof......✅
NO rear wiper.....✅
They were the only criteria, Oh it had to 4S and grey,
Mine is GT Silver, I didn't see that coming, it's got over £20K of factory options specced, most of which I hadn't even anticipated. Low miles FULL OPC history PLUS all coolant hose and clamps replaced, exhaust fasteners replaced, new disks and pads and 4 new tyres, new clutch 4K miles ago all under warranty !
Adaptive sports seats, factory short shift, sports steering wheel, extended leather, Bose, top tint wind screen, PSE, nav, 6 disc changer,
I took one look at the car and thought how much would it cost to add all that together verses an engine re build ?
So I bought it !
The oil has been changed EVERY 3 months irrespective of whether it's been driven, documented by photo's. Receipts, It's immaculate.
Bore scopes NO VISIBLE SIGN !
My mate bought one 5 years ago with scoring and had 5K knocked off the price ! He's changed his oil fastidiously and it's the same engine without a re build which he was assured it needed ASAP ?
Like others have said, keep your eyes open and don't buy the first one you see, I looked at some with Hartech engine re builds, what you couldn't see under engine lid was great, what you could see was rough, in some instances shoddy, in need of re upholstering and de fumigating, although for some an engine re build is the emperors new clothes and the most important thing when they're trying to sell you their car what you have to look at is WHY the engine failed in the first place, and looking at the state of some examples I saw you can see why engine oil or coolant levels might not have been a priority!
I'd rather take a gleaming example that's been cherished in fact cosseted, and if or when it goes pop spend out on an engine re build.
I paid under what mine was advertised at by a few grand knowing that they weren't selling and I had cash ! It was a tad over what I'd set my limit at but sometimes you just have pay up for something if you want it, plus finding another with all the bits this has wouldn't be easy.
The bottom line is, trust your instinct, get an inspection if it eases your mind, but don't walk away from a gleaming beauty just because it hasn't had an engine re build, that can be factored into the negotiating !
Good luck,