OKC is 100 miles southwest of Tulsa. I looked at mapquest and it looks like you may be taking I35 South out of OKC. That is the way I usually go when I head for Texas also. Maybe we could meet up in OKC at one of the truck stops and head out from there. Let me know what you find out from your buddy and we'll see what we can arrange.
OK I will shoot off an E-mail to Jim and see what his exact plans are and let you know. I don't see meeting somewhere along the way a problem. (I wonder if I can talk Jim into buying lunch, lol).
I am flying to OKC and he says he knows how to get to San Antonio so I will leave the driving instructions to him.
I did shoot off an E-mail to Jim and did not get an answer so I called. His wife said he is hunting in CO and should be back next week. As soon as I find out what his plans are I will post them here.