A lot of people call them 8000 but the very vast majority aren't. That "8000" designation only applies to Tradewinds imports of some Husqvarna made model 1900 (a.k.a. 1970). If they are stamped FFV or Carl Gustav, then, they're not 8000.
You can get the 1900 and their variants at Trade Ex and in gunshows.
Search for the right models and you will find quite a few for sale.
Pictures of the complete rifles with SN range is essential to determine model #
As for the value, they are all over the place, from +/- 650.00 $ to over 1000.00 $ depending on model, caliber and condition.
You can check the sticky thread on HVA rifles as per there are a lot of those pictured and identified in there there.
https://www.canadiangunnutz.com/for...796-Husqvarna-Sporting-Rifles-####-ALL-MODELS!!!