I bought a drywall lift on ebay with extended capacity (up to 15 feet ceilings) for about $150. One of these days I will probably put it on Craigslist for $100. It is set up to lift up to 16 foot long pieces. For ease of handling I used 12 foot long sheets. However, I think with a little care it would handle 24 foot steel, the sections just wouldn't fit the end stops. Yes, the yellow painters scaffold that go up to about 6 feet. I like having two sets because I'm not the most graceful person around and I'm over 65, so I put the two sets either side by side or end to end and C-clamp them together. Seems to make them about 2 or 3 times as rigid.