Well not sure you have seen this DIY on engine removal, only issue is they use a jack to lower it. But thought if you hadn't seen it has losts of other good info.
https://www.pelicanparts.com/techarticles/Boxster_Tech/15-ENGINE-Engine_Drop/15-ENGINE-Engine_Drop.htm
Just a suggestion would use a couple of nylon Tie down straps and wrap around the bottom of the engine maybe cross like an x on the bottom. I haven't done it, so just trying to add some helpful suggestions.