Have any one of you veterans ever had to fly out of the aft CG limits prior to picking up passengers and also dropping them off?
Don't ever attempt to fly if you calculate you will be out of limits. Limits are imposed for a reason. You will make your insurance cover invalid, the maintenance release may also be invalid, and all sorts of people will want to jump on your head.
Get a different machine is the best choice. If not, the AUW with your planned pax and the normal chubby pilot for that machine must still be OK, so carry enough weight to bring yourself into limits. If that will then put you over weight for the passengers, don't do the job or get skinny passengers.