Yes the hotel van can drop them at the gucci bldg, at least they have dropped me. Once the kid driving the hotel van only had an expired learners permit, the gate guards didnt let him on property and made me hitch hike.
Both hertz and enterprise are fairly familar with fdx pilots and sims and offer us a good deal. Tell them you are training with FDX and ask for the FDX pilot deal.
Search this forum for mem rental car. While you are at it search this forum for Mem airport hotels to see if you can find any info on your place.