Hallo Claude, try finding a Behringer BCF2000 controller! I got one in 2004 and used it every day. Then about a year ago after some 22 years of intensive use, it died on me. I tried another controller, Arthuria it was if I remember correctly. But I really missed the 100mm long faders on the BCF2000 and the possibility to assign all the functions to the machine. The BCF2000 isn't produced anymore for a long time. It's very popular among people like us working with sample libraries. I got a second hand BCF2000 for 100 euros. And I'm over the moon! See if you can find one. If so: Grab it! You wont be sorry.
Best:
Willem