I've done this five times and have some advice.

Don't sweat the little stuff. Here are some of the little things that bugged me upon seeing my cars close up:

Odometer not working after 10 miles
Speedometer not working after 20 miles
Door locks not working
Miss aimed headlights
Etc, etc.

You can fix the small stuff. Heck, with the help of the forum here you can fix anything.

I would absolutely make sure of two things:

Engine compression (oil usuage per 3k miles)
Tranny

I've traveled from my home in Michigan to these places for Ebay cars:

TX, VA, IN, KT, GA

Thanks,

Don

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DAILY DRIVERS:
'84 300DT 298k (Aubrey's)
'99.5 Jetta TDI IV 251k (Julie's)
'97 Jetta TDI 127k (Amber's)
'97 Jetta TDI 186k (Matt's)
'96 Passat TDI 237k (Don's
'84 300D 211k Mint (Arne- Undergoing Greasecar Conversion)

SOLD:
'82 240D 229k (Matt's - Converted-300DT w/ 4 speed