I've got to agree with @binky_bass - if you want a custom bass at a reasonable price then Alan has got to be your man. Build quality is exceptional and he will give you regular updates.
Further to the comment about new builders with no form - I have to disagree - our own @Andyjr1515 and @Jabba_the_gut have built some amazing basses(I have at least one from each) and have a solid reputation on here. My own local custom builder, Kersey Guitars, has only recently opened his works and is building his reputation by turning out good quality instruments.
Jon Letts besmirches the reputations of small luthiers by his actions - however we should remember that he is doing damage to his own reputation and integrity and we should not judge other luthiers by his performance.
Personally I'd be back in the Small Claims Court asking them to enforce the original judgment. This may involve a Legal Charge on his home, which will mean if/when the property is sold YOU get paid. May take some time but you are guaranteed to be paid eventually. See para 3 below.
https://moneyadvisor.co.uk/charge-on-property-2/