well, for starters, methinks that you could on the cheap side, build your own fluorescent systems from electronic ballasts (with kino tubes, for color correction)2 footers, 4 footers, even 10 banks, plus, some 8 or more 50 watt pars(like the ones that they use in clothing stores, the ones embedded in the ceilings?) that you can put in little cans that have yokes and even gel holders!!!!
that will give you very much movility and quantity of lights that you can use, look also into par cans and the such, even garden 500w flood lights, you can always make doors for them and though they r not so controllable in a little studio they will have the punch you r looking for, yes, china lights, and change the existing fluor ballasts for FF electronic ones, and get them color corrected tubes.
also it would be a good idea to eliminate the office suspended ceiling so that you will have room to work on, just on the "studio" area, and leave the alumminum rigging to hang stuff from, or change it to sturdier aluminum pipes or something, hahaha, isnt it fun to make things??!!!
forget bout "film" lights nowadays you can for small things get same/better stuff without the brand name, unless they are arri PAR HMIs...
only get a good electrical distro system, one really thought out