I was being sarcastic.
However, my previous comment is technically correct. You still haven't raised any valid technical concerns with my solution.
If Mike Hughes (1) were still alive, I'm sure he'd be willing to be hired to prove me correct.
(1) The steam powered rocket guy that coincidentally became a flat earther after running out of money. The flat earthers ended up funding his (mostly) successful steam rocket.
Everyone knows the footage from NASA and the rest of the aerospace-round-earth-industrial-military-complex is all faked. Helium and Hydrogen are the devil's gas, so weather balloons also won't work.
I hope the flat earthers find some other mad scientist to replace him soon.
(Edit: I enjoyed the textbook "energy", but I've forgotten the author's name. Sadly, it's not really findable with search engines. It took a whole systems approach (including raw material extraction and maintenance)