Depends on how involved you want to be. I expect my annual be somewhere around about 2,000 however, I'm heavily involved with it usually do most of myself.
Everybody makes a big deal out of twins, but it's really one airframe with two engines. outside of the larger number of cylinders, there isn't really much difference in the annual. this being said, my airplane is basically in one constant state of annual inspection. I just fix things as they come up so the annual is not a big deal.
I run at 177KTAS at 22 GPH light and 172KTAS at gross weight.
Mine are O-470M 1500TBO. I don't put too much stock in TBO. I do overhauls on condition.
LOTS of room for a family of four, bags and fuel.
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