As far as Hydro's goes, there are two types. Ported and Non-Ported. See image for reference....
You need a Ported Hydro to have Implement lift on a Cub Cadet. The 129 did NOT come with a Ported Hydro from the Factory.
As far as the Cub Cadet 3 Pt Lift system, one can be added or installed on your Cub. Click on this link to our Technical Library Section to see what is needed....
Hitches
You can add a Front End Loader to a Cub BUT is needs an Axillary Hydraulic Pump and the front axle of the tractor needs beefing up.