Think you might have reliability problems with the DA42 and this no luggage space to talk of - if its 3 pax a Seneca VI or V might be the answer if thats the price range and you can get them glass
Easily operate out of 800m - although if you are back to a Seneca the 303 will take some beating as you have more legroom and cabin space if you can put up with an older machine - could also look at the P68C which is pretty economic for a twin and deiced (although speed isnt that brilliant it will happily operate out of grass strips with plenty of ground clearance and carry the weight well
I think you have hit on a real issue though - there is no light twin currently being built for the market and there is a gap