Nickerz

Does anyone have a completely stock tune? I'm getting the runaround here from shops that want blank checks to tune a car I'm interested in purchasing but really, I'm only interested in running it stock. Beams Swapped IS300 with G4+ standalone on a base map with no power mods. I don't know anything about tuning so I really have no business tuning this car. I would definitely not mind going from a base tune back to stock eventually once I get a feel for it, but this car has passed through two people's hands so far that never tuned it. I don't want to be the third to buy this car, fail and then look for the next victim. There aren't any links shops out here with any experience. A secondary recommendation would be any famous Altezza Links tuners that I could email for a mail order tune. Thanks!