I just got back from there. Like Rob said (nice guy!) in his ad there is just a huge collection of parts. Probably over 100 engines and trans that I saw. I didn't take any pictures but just know that he is likely to have what you need but it doesn't appear he really keep an inventory. If you call him he might know but best to be able to positively identify the parts for yourself.

He didn't have any Unimog stuff that I need or cars that weren't too big of a project for me to start but if you need any hard to find stuff it will be worth your while. Lots of body panels etc too. There is even a 300 Adenaur (s.p.?) Limo hulk down there. Ponton stuff... and I counted five 240D manual trans. for which he wants $100.

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1986 300 SDL - rolling parts car and test bed.
1987 300 SDL - semi daily driver.
1977 U1000 Unimog
2007 Ram 2500 6.7l