If you find used Dynavector 20XL you'll be in your budget range. If you will not you'll just have to add another $100.
...used new model of Benz Glider(preferably low-output version)or just buy it new for $550 from Hong Kong.
...used new model of Benz Glider(preferably low-output version)or just buy it new for $550 from Hong Kong.