Newbie LED questions.

[TimeWasteing]

I'm building a 4 foot(L) x 4 foot(W) x 6 foot(h) grow box that I plan to grow 1-2 tomatoes and maybe 1-2 peppers (winter hobbie). I've got someone building me a 35red(655-660nm)/5blue(450-455nm) 1w led light (basically a PCB in a box with a 80mm computer fan) nether of us really know much about plants so I figured I better ask for help.

1. I've read red/blue is the better wavelengths to get but would it hurt to mix in other wavelengths? let's say I want to add 30-45/1w~ white led's.

2. what len degree should i use? being in a small enclosed box could I just go with no len's?

3. Placement of lights? My plan is to have a 40x1w led as the top and 2x13+watt cfl bulb (or small 12-15 watt led) on 3 of the 4 sides.

4. would 3w/other led's be better?

5. Does the PCB need a better/2ndray heatsink? It's on a thin aluminum heatsink plate I'd say 2mm thick.