It took us a day to install the ring fencing. and the posts were not set in concrete. and depending on the size of the ring you want using panels just for a simple 60x100 ring your looking at about $18,000.00 or more. yes easier, cost effective maybe not.
I spent $785.00 for a 100x80 outdoor ring ) includes the gate ( aluminum ) so to me it was definately worth it. I could have my stone wall 200x300 ring for $18,000 plus me putting up the wall. which im doing anyways.
The posts all I have to do is winggle them some and yank them up. and I have had this ring for 2 and half years now.