This is probably a really dumb idea. We have been in this house now four 24 years and for one reason or another, never got the basement floor poured. Theirs so much stuff down their now it would be a job to try to empty it. also it's 50 feet long with access only at one end. Maybe it's not a big deal but seems like it would be a lot of work moving concrete that distance. Anyway, my thought was, if pavers would work, I could do it myself in sections and move things around instead of hauling everything out. Moisture from underground is not a problem. The house is on top of a hill that's all gravel. The dirt floor is very dry. OK blast away.