The fact its booting into safe mode could actually be as a result of a stuck key in the keyboard. Likelihood? Probably slim.
At worst case it's fried.. so disassembling and cleaning probably isn't going to kill it too badly.. I mean broke is broke, right?
You can actually clean electronics with water, albeit it's supposed to be de-ionized water. Distilled is about as close as most people have access to. There's also TV tuner/electronics spray that can be bought at Rad Shack.
Biggest issue is junk in the nooks and crannies causing connectivity where it shouldn't be, and also being gentle with the components since the SMT stuff is inherently fragile. Not hard to knock a component off a board being too agressive cleaning.
If it were mine I'd be like the OP.... I'd at least try.