You can pick up new UK-sourced servos for about £40. Either the Savox low-profile 1251MG, or for full-size, the
Schumacher imported GM 80x series; note the speed given for those is over a 40 degree arc, not the industry standard 60 degrees, so multiply speed by 1.5 for a comparable number i.e. the 0.04sec model is actually 0.06sec.