Heckel #145XX

I'm selling my Heckel #145XX bassoon. Come with original case, two crooks CC1XL and CC2. Due to neck and left arm pain, I need to replace it with a lighter instrument (I'm open to a trade for another Heckel bassoon in the 6000 to 11000 series, with me paying the difference). I bought it directly from the Heckel factory in late 1999, and I'm the only one who has played it, in my role as principal bassoonist in a professional orchestra. It can be tried out in Málaga, Spain. I don't ship.