Trumpet blower.... check out this thread, especially the link to the photo gallery. Then get in touch with Leigh McKinney at Eclipse! You will be impressed. He might be able to give you a "breadbox or schoolbus" estimate if you send him some photos but he will have view the horn "in person" for a true evaluation.
His work is THE best.
http://www.trumpetmaster.com/forums/...ht=boston#8998
You might get Paul (fatpauly) Artola to tell you what he paid for this project but that's not to say yours would cost within 15% of the same.