For full descriptions and the main range of A0's please look here:
 
https://www.sparkshotcustomcreations.com/product-page/a0-prototype-gresley-pacifics
 
These 3 new body shells are essentially the same as 3 particular shells found in the link above, namely the A0 G1 LOW, A0 G2 MID and A0 G2 HIGH but the addition of a 5B code in their names has been added to reflect some changes, these being:
 
There are now 5 boiler bands across the boiler and firebox instead of 7...that's it, that's the only change!
 
They've been put here in their own section as the drop down menu on the other is rather long and could be confusing for some. 
Each bodyshell comes with it's detail pack as normal and these plus the other G1 and G2's have now been improved so the cab roof is now a separate glue-on piece for higher printing accuracy and easier painting of the backhead controls.
Again, please refer to the link where all the original information for them and the product codes are, LOW, MID and HIGH referring to the running plate height etc.
 
The coloured render is a quick nock-up until more time is found for better images.
 
The grey 3D print plonked on the 4-6-2 A1 chassis is a work in progress, still needs some smoothing and details adding etc but gives an idea of it's look.