get an old seat pull apart the covering and use as a pattern then use your imagination . i was going to go for power ranger cloth but couldnt find any thick enough , i did have loads of spare seats but most i gave away and threw the rest out. find someone with a good sewing machine and they will knock some up no problem, you can have the seats refaced by an upholsterers i was quoted £50 for the lot , but dont go to an auto upholsterers as they will rob you blind.