As a UK dweller, if I wanted to upgrade to signature electronics in my Spoiler and/or Elan 5 is the only option to send to the factory in California? Or is there anyone accredited in the UK that could do so (eg, the official distributor American Guitar & Bassworld)? I assume the former but the latter would save $300-plus in postage (and almost certainly lots of time, given how busy Alembic are from the build threads), hence my question. Thanks!