Got your pm but can't reply on iPhone - have a mobile number will send it to you tomorrow though can't remember his name! Other one to try is fishlock stables he does arenas too, number is 01945 701131 (Gary fisher - tell him Ian and Abby recommended him!)
We used :
Walnut Tree Farm
Phone Number: 01638781794
6 years ago now - excellent arena - never puddles apart from during a proper downpour and is gone within 30 mins.
Sepia pillules from Holland and Barratt worked a treat on OHs old mare - had tried all off shelf mare supps, marble and regumate and other than regulate was the only thing that worked and miles cheaper! Had 4-6 pillules on a piece of apple 20mins before ridden. Was recommended to my on here
Ours is springride rubber chunks - virtually same as equistride at sheepgate - on silica sand. We are a couple of miles from kerilli south lincs fens and exposed, no issues with blowing away and IMHO rides much better than the strip style rubber both flat and jumping - chunks approx 25mm - we...
OH sprayed ours with Dacrylate (sp) tractor paint - excellent result and not as expensive as car paint. Lorry is stick sided steel with glasonite panels. Prep is the key to good finish and took at least twice as long as spraying