i have that book too, but the ones you want are the carrier books vol1 and vol2 written by Nigel Watson, he has his own website and can deliver worldwide.
vol 1 is pretty much the intro of the carrier concept vol2 is later Mk carriers but has lots on the Mk2.
yes the half round things on the deck is what i refer to, one is solid as you have it and one is mesh, the one that is mesh is on the drivers side, the otherone was left solid (on Mk1's anyway) because the cam net / tarp and bag rested on top of it.
will post up reference shots from the mannual 2 secs.
Ok these refernce shots are from the carrier ops instructions book UC-F1 and are for Mk1 but it may assist you.