Vivat least vaguest.
Join Date: May 2016
Sound cheap. Why not spread your risk and have one worked over first?
Very much what I would call a head service rather than overhaul or rebuild. I can see two possible negative outcomes as risks, one is the workshop tells you the scope of repairs needed exceeds their allowance in quoting and thus you can either pay more or collect the bits, else they scare up or salvage used parts to replace your more used parts, such that the warranty period is safe.