Rutger,
I`ll second Gary`s recommendation re KHM - I ordered a set earlier this year from them and had an upholsterer fit it - he was impressed with the quality of the binding and the fit. The only thing he used was glue - didn`t have to cut anything. They even put an off cut in the box, so when all the pieces were fitted, there was a piece left over to be used to match any subsequent order