Hi Gordon,
I've been down this path as well, I'll tell you what I know...
There is/are NO specific pictures or otherwise reference for these decals in any manual.
My owners manual shows some but not all, and only in passing, not clear concise references.
If you have the decal kit from Reproduction Decals, there will be seven decals that go on the frame and tank and two for the calipers (I think).
I'll start from the rear:
Tyre placard - centre of rear guard about 10mm above the edge,
Chain decal - centre of LH shock shroud about 10mm from the lower edge,
Battery hose decal - on inner (plastic) guard equidistant between frame rail and guard support bracket on RH side (visible when you lift the seat),
Tank decal #1 (brake fluid warning) - centre of tank behind filler cap approx 20-30mm (closer to the cap than the rear of the tank),
Tank decal #2 (coolant warning) centre of coolant access flap,
Handlebar decal (rev warning) - centre of handlebars between mounting clamps,
Fork decal - line it up vertically centred with the top caliper bolt on the RH fork leg and horizontally so all of it can be seen looking at the fork directly from the side.
Caliper decals - self explanatory, however they are a poor reproduction as the originals are stamped aluminium (like the 'liquid cooled' badges), not a decal.
I think that's all of them. I'll take some pics of mine (not that they're perfect mind you) to give you a better idea.
The Frame /Engine number decal goes equidistant between the upper and lower of the stem tube, on the front (duh) and more on the left than the right.
There should be a couple of rivet holes or marks on your stem tube, use these as a guide and line the decal up directly over them.
BTW, the 'liquid cooled' badges on the barrels should have a fully-crossed Q in 'liquid' for the L's (and possibly some M's).
They come up on eBay every now and then, keep your eyes peeled...
Cheers
Paul