Syncro 4&4 Discussion and Q&A last answered over 2 years ago.
You may also want to visit the Wiki(pedia) for a more structured index of T25 repair, maintenance, technical and ownership topics (browse for Syncro links)
You can find further syncro specific information on the Syncronauts website.
There was a fully expedition-equipped diesel Iltis 88 in "oldtimer markt" back in October. Sand tracks, Alloy Roof box, Ronal 16" 5-spokes and all for only E13,500 Tel 08042-503139 if your German is good enough and you like that sort of thing...
1985 Oettinger 3.2 Caravelle RHD syncro twin slider. SA Microbus bumpers, duplex winch system, ARC 7X15 period alloys
I was quite impressed with them, though I think I'd still rather a Haflinger for stupidly impractical but fun machinery, and a stage1V8 has to be on the list when I can afford the petrol.