[boncrshr]

Very cool on the top....had not seen one like that before!

Several thoughts:
1) Throttle cable-If it was me I would give Recreatives Industries (Max) a call and buy a Max style throttle lever and Max IV throttle cable. This is what I have on my Hustler, and the handle is aluminum instead of plastic.
2) It looks like you are just missing the laterals on your controls. Richard Clarke would have some, or you could fabricate some, I can take some pics if you need them.
3) Since you are buying a used machine, I would highly recommend changing all bearings and chain. This will increase reliability a lot, plus you will be able to re-seal the flanges in a proper manner to get your Hustler water-tight. There is an excellent article on this site that shows the proper axle flange sealing steps when changing your bearings. Depending on what size tires you wish to use, you may want to go with a different inner bearing, I used some two bolt flange bearings that moved my axles out about 1", giving me more clearance for wider tires. Buffalo Bearing is a good source for bearings...triple sealed outer bearings for about 17 bucks.