Edit: @HyAmi, I think Jens intention is to make room for most, if not all A4000T compatible accelerators to work with the A4000T version of the IndivisionAGA.
Yeah, I thought the same. However, an accelerator like the Quikpak 4060 is quite a nasty beast in terms of size (and layout).
If no-one beats me to it, I'll take a picture of the A3640. The Quikpak XP rev2 is (in direction of the Lisa chip) the same size as the A3640.