Parts and information wanted

I really want one of those angledozers that attach straight to the drott loader(Look at the old brochure links). 


Please email me with any info on where I could buy a nice replacement seat that looks original.(found K&M seats)

Does anyone know the difference between the tracks, rollers, idlers and sprockets between the four roller models and the five roller models besides the links in the track?  The rollers have different part numbers and I was curious if it was just an International thing or was it actually different. They do not appear to be different to me.  

I am looking for a angledozer or just a dozer bladeblade and also a three point hitch.  If anyone has a PTO setup I am also interested in that.  I would need the internals to make it work.