Backbox - LEDs.  Makes a nice backglass 'pop', minimal heat which will reduce wear and tear on the backglass artwork.
CPU controlled lamps i.e inserts and the like - LEDs if they aren't going to ghost. 
GI - #47 incandescent globes.  Run cooler than #44 globes and less stress on the boards.

Your FG is going to be a special looking machine.  You haven't skimped on anything yet so you may as well go the whole hog with it.