Unfortunately if the frame on the upper hull is anything like the lower, it's going to be really difficult to add vent detail under those vents (a.k.a. vent fans). It would be awesome if deagostini would design the frame around those vents, but I don't think that's going to happen.
...yes it does appear that the frame as well as the radial stiffening ribs will indeed run under each of the vents, as you can see in the images below...one interesting thing is that frame piece number TF-33 seems to be an open space (perhaps for access to the engine lights??)


...one other interesting fact is that the rear engine deck looks like it will be built in five sectoins (parts TP-21 thru TP-25) which actually seem to cut across some of the vents...it may be that the vents themselves will all be seperate plant-on details...
