I just put a beam in when I removed a support wall, for a 23 foot span with light overhead storage the recommended wooden engineered beam would have had to been 12 inches tall. The cost of the wooden beam was around $1300 but I didn't have that much overhead for a beam that tall, well I did but it wouldn't leave me much under it. So I went to the local steel supplier, crunched some load capacity numbers and came up with an 8 inch steel I-beam for less than $300 bucks, much less than the wood plus I gained 4 inches of overhead space. On the ends I used basement jacks to support the beam, bolted those to the concrete floor and I welded and bolted the beam to the top of the jacks. I also ran some wooden legs down from the ceiling joists on both sides of the beam to prevent the beam from rolling. Now with all that said and done, I'm wondering why you just don't buy a cherry picker to put in your basement, it seems like it would be a lot easier..lol Out in the main part of the garage it has giant steel I-beams running 15ft overhead, I have 2 different chain falls on trollies on 2 of the beams, one close to the door and another about 25 ft back. I can move a car out, back my truck in and unload an engine or whatever, put it on a cart, roll it to the back under the other trolley and use that one to put engines in the non drivers, or pull blowers. So yes, a trolley is very helpful to have.