Hi Bazil,
I could send you the owners manual but its 13Mb so a bit large to email.
If you register (for free) at the official Ferrari owners site:
https://www.owners.ferrari.com/cgi-bin/Feros/os/jsp/01_0_login.jsp you can download electronic manuals in Adobe PDF format for most models.
If you get in touch with the company that makes the carcoon they will tell you the size you need for your car, I can't remember now what size mine was. I might be a "size 4 Wide" but I'm not positive. It was about £430 so that might help to narrow it down, you should contact them though as the size I had didn't appear on their website at the time. The url is for UK sales is
http://www.carcoon.co.uk
The fans go at one end or the other of the car. I don't have much room either but there is enough to allow a few inches between the fan and the wall.
I don't have the fans at the door end of the garage for 2 reasons:
1. The only power is at the opposite end of the garage.
2. The instructions tell you not to put the fans near a heat source including metal doors that can heat up in direct sunlight.
I take it you have seen the pics of my carcoon - I have posted them once or twice already?
Hope this helps,
Justyn.