Unfortunately patience is required....
There is no reason that the G19 satellite cannot be received as 87w channels are repeatedly received and the sky appears to be open without obstructions. Maybe try another satellite. Get 89w, 91w, 95w and work across the arc? The satellites are there and we just need to figure out if it is an aiming or programming issue.
Did you try the receiver blind scan as suggested yesterday?
Why not remove the difficulties that are present with the current install? Move the dish to a temporary place on the ground (mount the tripod on a pallet) and set up your receiver and a small TV next to it. Forget about the meter and the motor and use just the basic equipment.
I have to assume that the major challenges for your install is being up in the air, learning how to program a meter (not even sure if the meter is working properly) along with sorting out all the new terminology.
Simplify before giving up! I am sure you will be successful if you take a step back and maybe give yourself a break. Reread the advice that we have provided, ask a few more questions and answer a few more of our questions. It can be done and the results are worth it!