I had a couple cube pod LED's on mine before I upgraded to newer style plastics. The pre 2013 headlight bracket assembly you could fab up some L-metal to make brackets to support 2 lights. Couple things to note.
1- The weight of those are not much, but I broke 2 headlight brackets due to the bouncing of them going over rough dunes. If you fabricate something, add a gusset to angle back to itself, like a triangle, to support them better.
2 - It might have just been mine, but going directly to the low/high switch it seemed to make my lows flicker compared to running a new button with fuse direct to the battery. I now run them all direct to battery.
Attached are a couple pics, you can see how I used the L brackets. Think through your design and beef it up better than I did if you are able.
I just read a post from almost a year ago that you was involved in with QuadManic about the flickering. Did you ever try what he suggested? I am also thinking of slanting them, don't judge my picture lol its a rough draft of what I expect. I know for sure it will need some heavy duty bracing.
I can't recall what we were discussing but I went a different route anyway i am sure, lol. The angled lighting placement is a new one I have not thought of. Depending on how you fab up the metal, but if the lights are under the fenders it will be blocked by the plastics. Try a couple positions and keep posting as you progress with them.