If you want to really get ready be proficent at a simulated instrument takeoff, climb to a few thousand feet, track a VOR, enter hold for a few turns, find another VOR or NDB and hold (enter the hold from all different directions). In the holds set a long DME say a few miles and practice stalls, slow flight, engine failures, steep turns, emergencies etc all while in the hold. Make timed and compass turns (simulated HI failure). Depart the hold for VOR, ILS and NDB approaches to aiports nearby. Go missed and track back to a NBD or VOR and enter the hold. Then do a few VOR arcs and NDB arcs. Rinse and repeat. Dont take off the hood till the six hours are up.
Thats pretty much what my whole flight training at FLX consisted of. I was able to take off the hood only long enough to make a refuel then we went right back up. Not much different then what I did in the sim with USA Jet.