Moving day volunteers: Brooklyn's family relocating in Philadelphia

After my landlord sold the building, I found a safe, affordable apartment in Philadelphia, and the lease starts on Monday. I have two children, a few pieces of furniture and no money for movers. I'm hoping for a few strong people for about four hours. If you have a van or pickup, that would help enormously - I'll cover fuel. The old place is on the third floor with no elevator and the new place has just one flight of stairs. We'll do it in two trips. Lunch and cold drinks are on me. I know this is a lot to ask of strangers. I'd be happy to share references from my landlord and my employer. Even a small gift gets used right away and I'll thank you myself.