they'r out there just got to keep looking picked up a 3 yer old last year and have brought him on a bit he's now showing well just a bit nervous but that will pass with time and training. he's now 4+ and we love him to bit's cost less than 1000. :D only thing is Sasha mothers him.
Just about to do one or indeed two for myself and in all honesty I think it will depend on many factors if its a low angle ramp then I would think 10mm ally chek plate will be fine so long as its battened with a suitable hard wood to give the horse somthing to toe against. on my lorry I'm going...