Here is a review of the Daisy 953, which is similar to the Daisy Avanti 853, with a few exceptions. Such as a LW barrel, wood stock and diopter rear sight.
Here is a suggested fix for the horrible trigger:
Handy little booklet that covers disassembly, trigger fix and other modifications:
I own a 853 and find it to be a very accurate 10 meter air rifles.
I havenít checked the price for a new one but I have see used ones going for $175 to $225. Also, donít ignore the 953. There have been favorable reports about accuracy for these less than $100 rifles.