Bill tgo - On the Martin, I'd recommend my partner, Matt Hayden. He's very good, and more importantly, knows when to back away from something that's out of his depth.
The pickguard shold be pretty straightforward; it's a matter of steaming off the old one (if necessary) and putting on a new one. The logo would be a bit more problematic; cleaning off the old one of necessity goes through the finish, and replacing it depends on availability from a Martin shop (see below). Then it'd need a touch-up finish job on the headstock. Matt could do that, but probably not quite to Martin spec, as we're not shooting finishes very often.
The cracks can definitely be looked at. If they've been botched, they can generally be re-done. Matt can definitely handle that level of work, but in combination with the headstock stuff, it may be better to take it to an authorized shop.
Overall, the absolute best Martin shop I know of, bar none, is Gryphon, over in Palo Alto. Frank Ford over there is essentially the local god of Martin repairs. (Plus, they're an authorized shop, and can do the work to absolute spec.) When we need work done on our own Martins, that we can't handle ourselves, we go to Frank.
If you want, feel free to contact me offline
sf-nic@dm.net and I can hook you up with Matt and/or Frank.
And on Val's suggestion: I've seen some of Dave's work; he's quite brilliant and knows his stuff.
Olie - I don't know from Martin guys in Texas, but the Martin website lists Charley's Guitar Shop in Dallas, at 972-243-4187. From Charley's
website, the guy you'd want to talk to is Bryant Pablo Russell.
Elsewhere in Texas, there's Mark Erlewine over in Austin. IIRC, Mark is Dan Erlewine's brother; Dan is the master luthier up at Stewart-MacDonald on Atens, Ohio. Mark writes the occasional repair article in Vintage Guitar magazine, and seems to know his stuff, as well.
