Its no problem buddy, I can understand it may seem difficult Btw, finding a person for cruise control isn't that difficult, I would've referred you to the same guys who wired the audio control for me (per my instructions). If you saw that thread I posted a link to, somewhere on page 5,6,7 the pinout is mentioned. So its only a matter of trial and error.
As far as the push start and tach/speedo goes, I'll save them for you.
For your 04 Civic, I don't have anything specific but I do have a tire pressure monitoring system which is a universal fit to any car. Let me know if that interests you.