Cockpit fit

I am working on a Revell F-14. I spent a lot of time on the cockpit detail and whated to keep it open for display.The problem I have is that when I do a dry fit on the cockpit halfs I see a small gap. I though I could glue the down two half with elmers (so I could remove it move easly after I air bush the frames). However I am afraid I will over spray between the gap and ruin all my cockpit detail. I though about putting a small peice of masking tape inside the gap to block the paint. I figure I would tap the mind of the best model builders of our times at the forum web site to get some more ideas.

thanks again in advance