Even if you find friends that are available, they will stop picking up your phone calls after you have them help once or twice. All of mine got smart and will only call me back after two or three days when I was calling for help.
I bought an escalera, a good appliance dolly with the rubber belts that run on the stairs, and a Harbor Freight lift table. I would not be without any of them.
I ask the seller where the pin is located and choose accordingly. I picked up a STTNG from a person and only brought my lift table, the pin was on the same level as the driveway. I will only bring the escalera if over ~3 stairs are involved. Otherwise the appliance dolly is lighter and easier to use.
If you are going to be moving many pins you will find and escalera or equivalent to be a bargain. Ask people with various back and body injuries how much medical care costs and how much they would pay to not be in pain everyday. Good tools like the above three items will last you a lifetime and they are useful for many projects besides moving pins. Also, you can often find these carts for sale used at a good discount.