That's what I kinda "engineered" for now. I call it "Gravity fed Wicking Sip" or "GFWS". I stuck a serum hose to bottom of the bottle, made little holes on the hose, broke a toothpick in half and stuck it to end of the hose so it could act like "wicking medium" and help keeping the hose straight while going in the soil.. Then stabbed the poor soil with long screwdriver, fed the hose through the hole it made. Closed the bottle so water won't evaporite but made couple of holes on the cap.
I made it with the stuff I had laying around but I'm thinking on buying a real bigger hose, filling the end of it with good bit of soil and making holes on the portion of the hose thats filled with soil (imitate the wicking net pot basically). I probably would secure end of the hose with some type of screen to make sure soil doesn't come out and cause water pouring out freely instead of wicking through the soil. Then maybe attach it to bigger reservoir and keep it outside of the tent. Run the hose through passive air intake hole.
Downsides: I won't have water roots.
Goodsides?: Much easier access to reservoir. Space saved by having the option to move your reservoir outside. You can wick as many pots as you want with a single reservoir by multiple hoses, so you multiple the saving space part. You can make your reservoir as big as you want, let that sink in for a second(Are you going to Bahamas for the summer? Get a big tank, stick the hose and you good to go. Are you going to jail for growing weed? No worries, stick the hose in and boom... Just like that, you got something to smoke when you come out. No need for building a pot from tote just stick the hose into whatever pot/bed you using. You can increase/decrase (add more holes or more hoses) and move the wicking area according to how wet you want your soil whenever you want.
I think I accidentaly found something useful. Hello my highschool teacher, what do you think about that.. huh?
I will build it tomorrow, probably will post pictures for better explaining but its basic stuff.