Corrosion inspection for 2005 W211

[puzzler]

So Im looking at a car which is in Florida and I read the carfax showing it was in Bellingham most of its life, then went to Georgia and then Florida as a rental..97K miles..

BUT NO!Somehow had the wrong carfax and I see now its entirely been located in Florida since new in 04. No issues shown other than minor stuff, power steering reservoir and similar replaced..Alternator..Regular dealer service.

Question? Im having it looked over and just where should one expect to find corrosion and look? We wont be able to remove splash pans below but can flashlight up under the gas tank and wheel wells..Open the spare tire compartment and around the engine firewall and..The exhaust will be visible but being stainless should be okay..while other areas maybe not..Front wheelwells around the shock attach points I believe are vulnerable.

I also live in a coastal area and would plan a long term corrosion control practice but just want to avoid a nightmare with long distance purchase. Such lower prices on the East Coast! But long distance buying is pretty spooky!

Thanks in advance!