Fuel Burn for Mits

Could someone who flies mu2's (I'm thinking short body other than
solataire) help me with these questions?

What altitude would you pick for a 300nm trip, no winds or wx
considered?
What's your fuel flow/hour in climb at sea-level?
What's the flow/hour in climb at 25,000?
Can you expect at least 2000fpm on a standard day, max load?

I'm trying to figure how much fuel they use on a 300 and 600 mile trip.


I'm flying a bonanza for a construction co now, but we want to go
faster and the business is doing good for now. Thinking about a Baron,
or step up to a P-Baron, or step even more up to a short body mu2.
Thanks for any info.