How much would you pay a couple of guys to lift a heavy treadmill up 3, then 4 easy stairs, and load it into a truck?

My sister has my Mom’s treadmill. It is worth a couple of grand and my sister doesn’t want it anymore. It’s been sitting in her basement for 5 years and she’s only used it a few times. She said that I can have it, but, when her husband and a friend carried it into their place, she said that it was a pain in the ass to get in there. I’m guessing that it was quite heavy.

I was thinking about hiring a couple of guys to move it. How much would you pay?