Congrats on the new projector.

For screens, I am still exceedingly happy with my 4x8 sheet of lightly textured Formica. For $30 you could just leave one on the wall of each place you might want to visit and not have to do any of that nasty carrying-around stuff.

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8