My OH would like to buy a scaffolding about 6ft in height and around 4 -5 ft square on wheels that could be locked for cutting a 10ft hedge which is quite wide. He would like something safer to stand on rather than a ladder which he said is not safe enough for the job. He is using a strimmer with a long blade for hedge cutting. Any one know where you might get something like this? has any one used this type of scaffold?