In fact, when we brought up the mySQL based search, I wrote a program to parse the messages and load the search engine. If I can find that little utility, it should be fairly easy to modify it to convert everything. I guessing it's about a day to find the code, modify it, test it and parse all the files.
However, ASOG is more than just the forum. It also has user systems and some other stuff. With the MUG site, Mart does that work and we just host the forum for him. If Brian or someone wanted to take over the primary site, then we could do the forum.
Another question would be what to do with OTL. Does ASOG become a sub-set of OTL or just a searchable archive?
