I wouldn't do it, considering the age (fragility) and value of the board, better to send it to someone like like Anthony Hoffman in NZ.
Not to say it isn't possible, but I have yet to see one of those boards flaky or dead due only to a poor solder joint. I have however seen them with lots of other problems, that a home "bakejob" won't fix (SMD capacitors being the obvious one). Motherboard RAM cutting in and out, if not a contact issue with the SIMM is generally some sort of damage from battery leakage.
