Yes, that is an LGT ... can't make out 316 or 318.
Either way, these are outstanding little tractors and make terrific lawn mowers and snowblowers. As noted ... not the garden tractor and not hydraulic powered.
This will have a 44" deck, foot pedal travel control, and a nice, heavy hydrostatic rear axle. Similar frame and all steel construction as the other Ingersolls.
Hard to say what the trailer is, but $2000 isn't bad for this machine, IMHO, if the condition checks out.