The lengths and fit are all very tight, it looks like the carbon turbine cover could go back a few mm on the bell mouth. I then clean up the fuselage inlet back edge,radius either side of that and ensure its sanded flat across the front face. The wrap of tape the factory adds will need smoothing down so that the white Y joiner can go as far forward as possible, before you drop the back round section onto the carbon turbine cover bottom half.
to get the cover on, file a lead in on the back sharp edge so it will go into the small gap between the wood former and carbon bell mouth