Good stuff Wayne!
There are 7 or so kits in 4 brands available for 1:72 builders (of which I have 3
): Airfix, Avis, A-Model and now Fly.
The Airfix offering is the oldest, and was the only one available in any scale up until about 10 years ago. It's still not bad at all, but not as good as current releases, due to obvious advances in fine detail moulding.
The next (in 1:72) was the Avis kit which is very nice, but recently surpassed by the Fly kit, which is LOVELY! The Avis kits are purely injected, save for the windshield, while the Fly kits come with all those lovely resin and PE parts.
The A-model kit seems to be based on (or a direct copy of) the Avis kits, though they also have an Hs 123C which is listed as 'new tool' on the scalemates site. Haven't seen that kit personally to comment.
Hoping to make a start on the cockpit tomorrow, and might even do a side by side build of the kits I have.