I did this last summer and here is my advice... for one, if you are getting a good deal, do it!
Before it comes down, take pictures of EVERYTHING, every connection, every piece, every upright, etc... ( unless you are paying someone to disassemble and reinstall) pay very close attention to how everything goes together. We took ours down at the old place so we knew how it went back up. We cleared, leveled our spot and put our stones in( must go under each upright,be level and level with one on each side, this takes alot of time but you will be glad you took the time) Then we went and took it down, brought it to our property and laid everything out, then the fun began. Make sure you get one of the installers here to give to step by step instructions. You can do it, we did and I think we enjoy it so much more because we did!
If you have any specific questions feel free to PM me!!