Usually something simple gets the job done, H20. "I'll wire your job according to print for $XX,XXX.XX. With payments.....". Sign here. If there is no print, I itemize everything, so it's clear what is included. I usually feel it's important to name some things that aren't included (permit, patching, etc.).
How you come up with that dollar amount is nobody's business but your own, and it only needs to look neat and professional if you have a supervisor. I do mine on school paper, and when it's lucky it goes in a file with a name on it.
Contract Proposals are either carbon type (if written on the truck), or from the PC in a style that imitates the carbon type (which I get from office supply stores).
PS I don't think this belongs in NEC
[This message has been edited by Tiger (edited 08-12-2005).]