If I have surplus bees I sell 5 frame nucleus colonies — including overwintered nucs — and queens. Sales are ‘collection only’ from the Jedburgh area. I rear all my own queens locally, selected from my best stocks and ‘open mated’ in May and June (for current year nucs) or in midsummer the previous year (for overwintered nucs).
The bees are local dark mongrels, not Buckfast, or carniolans, and are all the better for it. Several of my stocks are derived from native black Amm (Apis mellifera mellifera). They have been selected for their good behaviour and hard work. Many beginners have enjoyed successfully starting beekeeping with these bees. They generally only require a hive with a single brood box and are reasonably frugal with stores overwinter.
The stocks from which they were raised have low Varroa and virus levels, but I make no claims about them being Varroa resistant or tolerant (and if others you see being sold come with these claims I’d ask to see the evidence!). Parental stocks are treated in mid-August and late November to minimise mite levels, and this is usually sufficient for the entire season.
I only sell bees 'locally' — which I consider to be within ~25 miles of Jedburgh or Kelso — and don't ship bees.