Just discovered updates on this thread!
Well I did get a place, but not quite as expected.
It was a flat NO from the first two Universities I approached, given that they didn't class my first degree as relevant and my work experience irrelevant too. I got a better response from Edinburgh uni who offer an online MA in History, but it's eye-wateringly expensive. The course leader sent a lovely email saying that he thought it was borderline, and suggested I did a couple of Open University modules at 3rd Year undergrad level, pass those and then apply next year. (A lot more positive than a flat NO).
Ummed and aaahed about doing that as it was a pricey option - modules were around a grand each, and they were saying to do two, then the MSc was £15k over two years. Just couldn't justify that spending.
Reflected on it over Christmas and thought about what sort of history I'm interested in, and looked at courses again.
Long story short, I applied for the part time MSc in Genealogical, Heraldic and Paleographic Studies at Strathclyde and was accepted right away. It;s far more relevant to my background in that I've been researching my own family tree and transcribing records for a decade, and I can do it over 3 years (2 years of part time study with assignments, no exams) then the last year writing the dissertation. Classes are online but with the option to go into the Uni, I'm local so ordinarily would plan on going in but who knows about what the situation will be in October.
I'm really excited about starting this and what direction it might take me in my freelancing. Dream job would be as a researcher on Who Do You Think You Are, or managing a wee company archive somewhere.