F-720 Armrests

Is there any reason I can't go ahead and rivet the aft flange of the armrests to the F-705 bulkhead? It sure seems like it would be easier before the side skins go on, especially the outboard rivet.

Also, is there any reason I can't rivet the vertical face of the F-705G canopy latch angle (tip-up) right after I rivet the vertical row of rivets holding the skin to the F705? Again, it seems it would be easier to rivet if the skin can be peeled back to make room for the gun.

I think the only thing that it may make difficult is your interior planning. Interior Paint, panels, upholstery, etc. would be a bit easier if those arm rests remained removable during construction.

It also gives you a little more elbow room when working inside the fuselage.

Other that that I cannot think of anything.