I have been preparing the armament for the 4 Sukhois. And they can carry a lot:
The long burn R-27AE which are carried by all types of Flankers are from the Airfix kit as Trumpeter's are all the R-27RE/TE type. The LGB and missiles from the Italeri (lighter grey plastic) also need some corrections. The HE bombs are from Trumpeter's Il-28 and Tu-16 kits, but I need to replicate the MER used to carry them, and it's not simple (here on an Su-24 fencer):
I also tried to reshape the Italeri KH-31R Anti_Radar Ramjet missile (which can be deployed from the Su-30 and Su-34 only out of these 4), which is too big in all dimensions, and not found in many kits. Although not perfect (what is?), it is much better than before. The body is a piece of evergreen tube, and the fins and nose cone taken from the kit.
And also more filling and sanding on the Su-34: