need help with tunes

[2006nytro]

well to start off im dustin cain. i drive a 2000 powerstroke. ect cab shortbed. 270K miles. well in the next few weeks im lookin into a superchips gold old single tune deal. and i know bill can reburn it. and i was wondering what he can do for me as far as tunes i really dont want a 60 hp tune. id like something like 40 but for dd. not tow. and my trans isnt great so i need him to the best thing he can do to make that trans last. geting a new one in the spring so until then. any info would be great.