Here is a link to an 82-C, the shape of the panel looks the same but yours has a few extra instruments added.

http://www.torontoaerospacemuseum.com/tigermoth/tigergraphics/tiger03T.jpg&imgrefurl=http://www.torontoaerospacemuseum.com/tigermoth/gallery.htm&h=95&w=200&sz=21&hl=en&start=22&tbnid=LlmZPPLS_D-6iM:&tbnh=49&tbnw=104&prev=/images%3Fq%3Ddh%2Bmoth%2Bcockpit%26start%3D21%26ndsp%3D21%26svnum%3D10%26hl%3Den%26sa%3DN

Only two extra intrument compared to the DHC Dwg 1979 that replaces DWG 1486. And one of thoose is shown as an option of a clock on the upper far right, the one below it seems to be a hole cut for a modern Altimeter. Trust me Its a 82c, i reconise it, ive flown one, ive got the drawing infront of me!! As for it not being the same as the one in the link, i have 4 82a intrument panels in my workshop at the moment, every one is slightly different, and not one is to the original drawing.
And as for, “its got to many instruments for a 82a” thats because its an 82c;) which is very different to a 82a in many ways, incuding how it flies!