For what you described I would think so. You aren't going to be ripping thick hardwoods so there's no reason for a monster, but you couldn't haul it anyway.Is 2hp gonna be enough muscle?
Contractor saws were made lightweight for the very use you are describing and they can be muscled around pretty easily by one guy.
Look at the Bosch portable too I can't remember if it has that much ripping width or not but it has the power to do what you descibed as well.
Let us know what you come up with.