Not exactly apples to apples, but I'm preparing to sell my '88 M491 cab...
https://ted7.smugmug.com/Cars/Private-Party-Photoshooting/Amoroso/n-74JfJp/Porsche-911-Cabriolet/
As a result, I've been contemplating different sale venues. Primarily PP, RL & PCA Mart VS. BaT (although I had great luck selling a 964 rear seat delete on Pcarmarket last month, I'd likely go BaT for a car).
As part of my diligence, I've chatted with quite a few folks. The most salient advice has come from a local Pelican that has sold a number of sports purpose Porsches...
"Auctions seem to be the only path to a quick and fair process anymore. I honestly think no-reserve is the way to go as BaT never wants to give high enough reserves to normal folks anyway. Only if you want to sell below market will you have any traction in those other channels (PP, RL, PCA, etc) and kind of a waste of time imo.
No reserve is uncomfortable but you just have to rip the band-aid off and go for it if you TRULY want to sell. Otherwise you will market the car elsewhere for months, get offers you dont want, talk to 1,000 people etc. Then after all that you will go to auction anyway but with a stale car that many have already seen languish in the open marketplace. Also, once on BaT, if they were to give you an acceptably high reserve and it doesn't meet it.... you're back to square one."
I haven't decided on what to do, but based on the above advice, I am leaning towards a no reserve BaT submission. I don't have to sell by any means, but I'd also like the budget and garage space to experience other Porsches.
Your car looks A-mazing btw. LOVE the matching Pole Positions. I just installed Pole Position ABE Classics in my 491 coupe:
https://www.instagram.com/p/CIraWdMlUCg/?igshid=1k80pnh8ka4nq