Modify Service Desk for Facilities Operations?

We really like Service Desk plus, so I showed it to our Facilities Operations people, the guys that run the building systems. They are looking at a $20k package that basically does what Service Desk does except for one thing. Service Desk does not manage Preventative Maintenance on Assets. It would be nice, even for IT, if Service Desk had a Preventative Maintenance feature. Say you have an asset, a high end scanner that needs cleaning every 3 months. It would be great if I could create a recurring task so that a defined technician would automatically get a task to clean the scanner every 90 days.

As a sidebar, I am showing our Facilities people what Service Desk can do on Friday, I think they can use everything except the actual network scans. Have you considered tweaking Service Desk for Facilities Operations?