Please take the following comments solely as an attempt to help you sell this car. I have read your eBay listing. It seems like this car has had very extensive work done to it. I wish I was in CA and could drive it. I bet it is a blast.
In order to clarify some of the items in your listing however you may wish to consider some revision. It is a Series 4 (S4 or SIV) Seven not a Mark IV. I would not call this a "Genuine... Twin-Cam model" as it no longer has the twin cam engine. This is JMO but the more accurate your listing can be the more likely the car will sell.
Personally, I hope it sells for $75,000 . Good luck.
You are right. I should have been more precise with my description. My intentions were only to stress this is no clone, I think of any group the Lotus guys will understand where I am coming from since every two car garage has built some Seven spin-off.
So to clarify this is NOT original but it IS a Lotus Seven.