will my plant grow like this?

Hey, need a little help I plan putting my germinated seeds into a jiffy pellet till they sprout and about a month after (or till roots reach bottom and ready for transplant) switch to a bigger pots with recommended 20-5-5 soil with perlite mixed in and a recommended 5-15-15 for flowering, and water them when they need it and I was planning on making a growroom out of wood about 4 to 5 foot tall and about 3x3 for about 2 plants with mylar on the walls, ceiling, and floor 3 cfl's (not sure on watts or lumens yet)any suggestions? for vegetative cycle . Plan on cutting out a hole for a outlet fan and making a shelf in the corner of growbox with 2 liter of co2 (yeast and sugar with warm water)with a tube running behind an oscilating fan to spread co2 through the room.a standard temperature gauge for keeping an eye on temperatures ( I was told in such a small growbox not to even worry about humidity or I would of built a humidifier into the wall of growroom and got humidity gauge) Is this true or a good idea? And also I know the ph should be between 6.0-7.0 is this for soil and water? and is it wise to use the vinegar and baking soda technique for lowering and highering ph? So is there any other nutrients or chemicals I need to add after placing plant in 20-5-5 soil or do I just keep the ph good and plant watered till I switch to 5-15-15 soil and flowering lights and then do the same ( just keep watered and at proper ph) All feedback and suggestions will be highly appreciated!

You have a great plan so far. I have a similar cabinet bought at IKEA. I am using 4 45watt cfl's on my new "HOGG" plant and she is 4 feet tall and 3x3 wide, almost as big as my fridge

so when I switch my plant from starting soil to soil high in nitrogen ( 20-5-5)will I have to do anything to it (besides water and keep ph between 6.0-7.0)will I have to use any other nutrients or chemicals? And when I switch to flowering do I have to transplant (switch my soil) due to soil should be high in potassium(5-15-15) or is there some way to lower nitrogen level and higher potassium?

easy on the transplanting your plant will use up the N in your {20-5-5} soil. For flowering just change your "fert" to one high in P for instance im using {8-16-8}..

Don't for get, Leach your soil to prevent mineral and salt build up!!

baking soda is not the best alkiline because it has sodium(salt) sodium bicarbonate . pet stores sell calcium bicarbonate for raising ph in aquariums less salt build up