Ok, I just got out my parts bin.
I'm sure your mirrors are the large size magnum mirrors (flat glass). (5.5" X 3.25", or so. I suppose it's possible the size of these (large) mirrors has changed a bit over the last 10-15 years, but I doubt it)
Here's what I have. Two large mirrors (convex glass) on short legs with metric adapters, and two large mirrors with flat glass.
I now remember that I had long arm, large mirror magnums (like yours) on a Kawasaki Mean Streak 1500. I got flat glass mirrors and didn't like them, so got convex glass mirrors for the long arms. I then sold the bike with the mirrors on there. This is why I have two large flat glass mirrors (in nice shape) left over. The convex glass large mirrors, with short arms, and metric adapters I put on my Valkyrie, for awhile. All are in very good condition, except I think the short arm mirror arms, where they mount to the metric adapters at the bottom have some thread damage.
I will be happy to mail you the two flat glass mirrors (that you prefer), but you will have to get one long arm to match your other side.
When you say your mirror is gone, does that include the metric adapter required to mount these (made for Harley Davidson) mirrors on a Valkyrie. I can give you a set of those adapters too.
I understood you were in Oslo when I made the offer. Assuming the shipping of a small box isn't $100, I'll throw in shipping too. I'll write
used motorcycle parts (or whatever you want me to write) on the box to help with any VAT or other taxes on your end. Or if you want, you can send me shipping cost (read off the box when it arrives), but I do not do Paypal or any of that foolishness.
If you want to order new, I think you have it right, one long arm, and one large magnum mirror with flat glass..... but I'm pretty sure these required the metric adapters at the bottom to mount to the OE Valk mirror mount points.
PS: IF you got these mirrors to stay put (and not swing loose hitting hard bumps) where you set them up, you are a better man than I am.

If you want my parts, send me a personal message on this board with details (address, etc)