Older generation Viparspectra blurples do the trick and are cheap.
But the fan is rather loud. Get passively cooled ones if that would be an issue.
There’s strains that don’t smell so if you don’t have a preferred strain yet then you can choose one that you don’t need a filter for and save some money.
I made a thread here: Non Smelly Strains
I have a tent from this company, very pleased with it and they blend in nicely with the interior. The bottom is definitely waterproof, I had it filled with water for months during an experiment. So you can bottom water by just pouring water on the floor if you wish to. You could just pour soil in it too and have a giant no-till bed.