Based on posts I've seen on the site, it may not be possible on an Orion. Series electronics take up so much room, that they have to route-out the instrument and there just may not be enough room left on your bass. If they can do it, you can bet it will be EXPENSIVE, LOL! Especially with shipping to and from Oz and the value of the AUD versus the USD. Just my $0.02.
Cheers