I have the feeling there were different options on the GE. I have seen that site before and today saw a completely different spec sheet right out of a real manual and the power was 93 horse power for the gas. The Santa Fe G dealership said he looked in his manual and it said 73. Like a lot of MBZ's of foreign nature there probably was different configurations for different countries. The Unimog had a 3 inch book of available options.
I am looking real hard at the "Radio" box version. I wish they came on a Doka without sacrificing length. I found some nice early 80's models for around 12 grand. Most were under 50,000 miles. Here is another good link for Mog sales.