Haha, sorry bud, i'm actually using the F-4E RWR and the F-15 hud, makes for a nice package. I think I might have cracked this one. In the HUD if you change the AA from a LCOS symbol to a CCIP symbol it keeps the gunsight in the correct position while allowing to change view angles. So if you want to see the radar and the hud in the tomcat do as follows.
In the cockpit.ini change viewangles=0.0,-0.2,0.0 to viewangles=0.0,-10.0,0.0
In the AA symbol list in the avionics.ini change LCOS to CCIP and the gunsight will be in the correct place.
The tomcat is easily my favourite plane by far but the fact you couldn't see the radar screen and the HUD at the same time always frustrated me, i've found the above to be a way of cheating this problem without losing too much.
Hope others find this useful
Many thanks to the people who made all the origional components for the tomcat. I hope you do not take any offence at the adjustments I made.