Anything is possible with enough money and a good machinist.
Gun shows, gun shop
Search for Savage 340 scope mount. The Revelation 225 was manufactured by Savage. Several online retailers offer different styles.
I'd start with Amazon. Your rifle is a Savage model 340, and if you search for Savage 340 scope mount, you will get a lot of hits. The mount and a set of rings is about $53.98. Shoot safe and often.
Best to ask a gunsmith for assistance.
25-80 USD
100-400 or so
Try e-gunparts.com
50-300 USD. Made by Savage.
how much is it worth and is it accurate.
try J C Higgens
I believe your rifle is a Savage Model 340, made under the Western Auto house brand of Revelation.
Neither Revelation nor Western Field made firearms. The first is a brand name retailed by Western Auto and the second by Montgomery Ward. The Revelation 220 is a Mossberg 800 and the 225 a Savage 340.