Depends if you cann make the economic (material reuse in orbit) or safety case (eliminate collision risk) there a couple thing that can be done for an Earth-like planet (lots of sunlight + atmosphere) to make itbwork:

- setup orbital refueling of your tug - if you have enough time, let the tug drift by gravity anomaly and sun influence as optimal - use electric engines as much as possible to reduce fuel mass needed - make the thing aerodynamic enough to enable aerobraking or even orbit plane changes - add tethers for even more momentum transfer magic

These tricks could make the proposition of capturing and reusing dead satellite much more viable when applied. :)