I don't know, the $7K price is definitely better than the $9.6K price, but I hope they come down more for you! It's "just" a Signature Standard - standard neck recipe, back woods, plastic compartment cover. Is this what a Signature Standard goes for these days? I haven't been in the market for over 10 years, this one is definitely more reasonable than some of the other Standards on Reverb right now...
Re: strap button - I think I have found my ideal strap length/instrument height - I've been using a leather Levy strap that helps it stay in place and it feels comfortable for me. Have you ever played one of these? I play a bunch of different basses and kind of let each one influence how I play it.
Good luck in your quest!