Compressor + Horn Kit

[Anadrol]

Hi, my truck is a '78, so I'm a little young to be in this forum, but I figured the activity level here would help me get a good answer to this question-

Basically, I'd just like for someone to post a good way for me to have a loud horn underneath my truck.

I know I need a compressor, air lines, a horn, a switch, and wiring. I know that this can all be purchased as one kit, but are there any available that are top quality?

I'm looking for quality over economy here. I want a good compressor that re-loads fast and quiet, and has enough blow power to make the horn loud as hell.

As for the horn, I want a quick, startling-ly loud jolt of horn sound, not a long, drawn out train bellow. I don't want it to be too high-pitched though.

Please post if you have knowledge in these matters.