Bottom Damper Bushes. Do you need to remove them?. Check Fork tube bushes for ware. Get new ones from VMX Service Holland if needed.
Also Fork Seals Ariete Best you can buy. . Also from VMX Service. Use a good 10 w Fork oil and 7w if to Heavy. Fork Springs if sagged or Pro rider replace. Experiment with the air Pressure. Also OIL LEVEL.
You must have a good Fork Air Gauge. NOT A TYRE PRESSURE GAUGE. Replace O rings in Fork Caps. Do not alter Forks except for mods in Maico Service Bullitions.
We have used a Hard Chroming Service in South Australia Many years ago. They where very good. Do not know Address or Name of Company. Walter from YSS may have the information.