I thought about that, a gas shock or something like on the back of a SUVs hatch... I'm fine with holding it open for now.
I really don't wish to be in and out of it except to connect a new keg!
Here's a lid pic & the back. I moved the Co2 & 25/75 mix tank to the back, put 2 holes for the air lines & siliconed them up. The back and underside of the lid aren't pretty... but it works.
and to answer the earlier question about something to keep the foam surround from compressing... I'll be leaving it alone right now. It is compressed but still leaving about 1/4-1/2" before sitting down all the way. Just making a tighter seal imo.
Final - w/drip tray!