Looks like Ive missed a lot. 22 Pages Sorry man Im not reading em all haha. But from what I did read, seems lighting and soil is still a problem.
Ditch the MG. There has to be some kind of organic soil around you. I got a bag of organic seeding soil for 7 bucks at Home Depot. You could use that the entire grow if you watered and nuted properly.
As for lighting, what seems to be the problem?
From what Ive seen, I think you need to slow down. Dont try and germ every seed you get. Save them. 1 or 2 at a time. You will have better results.
As for a grow box, seen a guy do this, what a great idea. Get two big rubbermaid containers. The like 60/70 litre ones. Flip one upside down on the other and attach them (cut little holes. zip tie them together and seal it up with some tape). Cut out a little spot on the side near the bototm, throw a 80mm cpu fan in there, bam intake fan. Do the same near the top, exhaust fan. 1/2 Plants max in them though. Lighting, 4-6 bulbs would work. You can use those like metal looking cooking trays as a light hud, and tape/glue white bristol board all on the inside. Bam grow box that costs less then 50 bucks (Well maybe a little more CFL's are so expensive.)