The tp produces realy nice chip, nice enough to put in wood chip boilers (which is why I bought it but the job didn't come of) and for a 8-10 inch chipper runs realy well with low hp. Other advantage with this one is the pto comes out pritty much in the right place without a banana box.
Have a look o the german ebay, there's a lot of parts on there, or there are a few dealers over here that will have it in.
I'll try get some pics of the air switch that does your 4x4/diff lock