Alex, meself here in 'Norn iron' has asked said aforementioned queries in the "Joining the army" sub-forum ( correct term?)
Check there and consolidate time, bandwidth and effort of everyone who may be able to help, eh?
I have spoken to the local TAVRCA who are brillant, but short on details of units outside their area -suprise!
Talk to them - its costs nothing (esp. if you don't pay the phone bill

)
AS to the UOTC / TA 'proper' debate, I'm somewhat concerned about the UOTC
image which seems to predominate, but we shall see.............
Like everything in life, although cliched(spelling?)
2you pays yer money , an you takes yer choice!"
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DA.