Flea is a great bass player. But he’s not British. Maybe The Kinks or Mott the Hoople’s bass players are available?
Def Leppard did a great British Invasion album (YA I’M 51 GO AHEAD THROW DIRT ON ME!) a few years ago.
Are any of the members of Them still living in Texas? They moved here in the 1960s after Van Morrison left.
Ian McLagen and Ronnie Wood of the Faces (and Small Faces) moved to Texas in the 1980s.