6 x 36w PL-L setup

I am buying a Fulham Workhorse 8 ballast with 6 x 36w twin tube PL-L's.

They measure approximately 16.5 inches in length and 2 inches wide.
My grow box will only be 13 inches wide.
So my question is, do you think I should use all 6 lights on the ceiling of my grow box or use some at the back wall for side lighting? The one side will be used for an opening.

Any suggestions would be appreciated.

Ok so I talked to Fulham and this is the right way your supposed to wire it.
This picture just shows 3 sockets but its just for reference. Anybody see any problems with this setup?
Blue dots are just wire nuts.

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Anyone out there that knows PL-L's?

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number of things you can do. i would suggest using 4 CFLS and maybe a 2tube Short T5 set up? or something like that? are you planing on Flowering in this box?