Fair enough then, personally I'd say you can expect to recoup some of the money you've spent on rebuilding it. Personally though, as I've said, I don't think yours will be worth more than any other good example (one that has been checked out fully) with an engine that hasn't even turned over yet, let alone run in. Yes, it's got a warranty, but personally I wouldn't necessarily pay a £2,000 premium for that. I also acknowledge however that I may not be any indication of the wider market, as per my original post.
I understand that you want to get the most you possibly can for it, I'm merely attempting to manage your expectations because I disagree with your valuation.
A complete sidenote, I appreciate, but as someone who plasters Torqen branding with every post you are always representing the brand regardless of whether you're expressing a personal opinion or otherwise. You might not be talking about Torqen products and services, but you are still representing Torqen. I don't expect you to change the way you post on here, but I thought it might be beneficial to you and your business if I remind you of that fact. Feel free to ignore and/or disagree with this along with my opinion on the valuation of your Porsche.