Would this work to make an outdoor arena?

If I killed the grass put a layer of sand (1 1/2 inch), an 1/2 inch of recycled rubber on top and peat moss (1/2 inch) roadatilled (about 4 inches down) it to mix it together then put rail road tie/bord things on the side to hold everything in. Im completely guessing, but I need a ring to last me around 3 years... Would it work?|||i would contact an excavator and some local boarding stables with rings. you could go through alot of work, time and expense, and wind up with a non-usable ring. talk to some pros and get their feed back.|||yes.if you do it right|||that sounds like you are doing it right but i wouldn't trust me because i have never done that before but my barn has put the sand and the rubber and in the dressage arena they have the railroad ties to keep the sand in and to mark the boarder of the arena. but it sound right but if you need help try goggling it or try using yahoo that might help you more that i can but good luck it the arena