Wow... Yea I never trusted USPS... I'm a big fan of FedEx and UPS. More-so the UPS because that's what my families old business used for YEARS and we only had a few minor problems occur, just things like late pick-ups and things like that...
Might be a little more expensive, might be a little cheaper, if you any friends or anything that own a business that deals with UPS... You can usually get damn good rates... I shipped an Aqua C Remora for about 7$ from Ohio to Texas... If you have that friend in a business relationship with UPS, they usually only charge by the SIZE of the box and NOT the WEIGHT.