Do you really like the sound of two Darts?
Pardon??
Ref the comment on the pneumatic leak, as a colleague once said "the advantage of pneumatics over hydraulics is, in the event of a leak, the sky is full of pneums" More than once departed with the pressure showing normal (ish), only to have the nosewheel light stay at red. keep the speed down below gear-limiting and after a few minutes there would be a "thunk" and the gear would be locked up.
I have to say I liked the F27. Built of girders and would see you safely through anything.