Having heard the EasyStar puzzle fit wings come loose (but not fall out or anything wierd) being the cause for magnet help I figured getting it done now would be easier. The same technique for the chassis was used to fit the magnets in each wing.
10mm drill bit pushed into foam
Scapel cut along marked line
Poke out foam inside line
CA glue magnet in place
NOTE.. CA glue is fast drying so make sure you get your magnets the right way round before glueing otherwise you will be stuffed.