Can't tell if this is because of suspected false identity, or something else?
Will and BassBros are 100% trustworthy and reliable, and asking to check the bass before handing over money is 100% how any bass shop would do it, they're never going to take a risk on something sight unseen.
Though if I was you, you're close enough to Leamington to justify taking the afternoon and going down there, rather than risking couriers or worrying about sending your bass to a stranger.