RE: Dream 42 gear
iSonic 87 and 101, or Carbon Art 55 and 62; Maui Sails TR-3 5.9, 6.6, 7.6, 8.4.
But actually I would need to force myself to compose a Slalom 42 quiver. Having less gear is good in order to reduce "beach guess time" to a minimum and for free sailing in Talamone Summer thermals I could easily do without the bigger sail.
Or even just get one board, iSonic 94, and two sails, 6.3 and 7.0, which would actually be my next season quiver (apart from having a Sonic 95).