What size trolling motor should I put on my boat.?

[mongosurfer]

I have a 2002 19" Fish Master- travis edition
heres a link to show you a picture.

http://www.powersportsnetwork.com/enthusiasts/pre_owned_detail.asp?PreOwnedVehicleCode=1900537

I wanna know if a RipTide Minn Kota 55 thrust with a short shaft will work decent on it.
Let me know thanks.........