Many, while some folks are obviously happy with their Dockside engines as written above, you should also be forewarned that the earlier production models of this engine have had a change to the motor and frame. These earlier parts are now OBSOLETE according to the Lionel website. So if you have a failed motor on one of the early units, it is going to require over $100.00 in parts to get it running.
See these posts:
https://ogrforum.ogaugerr.com/...5#129252226555777525
https://ogrforum.ogaugerr.com/...3#140089643075643183
Being you are on a budget Manny, I would strongly suggest going with one of the MPC era Dockside or small steam engines like the 8300.
There is also a non-command starter line 0-4-0 engine that has a die-cast shell with origins on this postwar model:
http://postwarlionel.com/motive-power/steam/switcher/
Lionel MPC made one of these with the typical AC pullmor engine that was a Pennsy engine. There have been many modern era versions of this engine with a standard model DC motor (larger motor than in the discussed dockside), like this one below:
