After a LONG period of inactivity in this project, I finally got the time to hoist the battery pack and install it in the planned location.
I was lucky to still have the engine crane available so I used it to hoist the pack. I didn't weight it but the 16 modules alone add up to around 60kg. Then there's all the brackets, spacers and profiles. And the cables.
It was fairly easy with just a minor hiccup. There was not enough clearing for the crane arm to enter the car.
Luckily it's a convertible :D

With the hard top removed it went along much easier.

All the rest went fine and the holes line up -- thank you FreeCAD!

I used the back seat holes and threads so I think the body of the car could be suspended by the pack -- I didn't try it though :P
Now that the batteries are not just lying on the floor I can move to testing the BMS.
Or maybe... connect the HV cables and do a small test run on the garage without BMS ;)
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