Over driving NO lighting

[Stab_Master_Arson]

I have a couple questions.

I want to overdrive F40T12 Bulbs on 48" Canadian tire/home depot "work light" ballasts.

I understand that you can just rewire the ballasts to accept only 1 bulb which bumbs the output by about 1.7 times. I want to run 3 over drivin bulbs.

Right now I have 2 coralife 50/50's and 2 coralife actinics sitting around.

My questions are:

Does anybody have any experience doing this? Does it get too hot?

Where is a good place in the Vancouver area (perferably closer to Coquitlam) to buy bulds and flourescent equipment?

Thanks