refinishing a rifle stock is anything or everything you want it to be or more. if you're like me and want the end results to be almost perfect it's going to require a lot of patience and time, years ago I refinished a couple different stocks one I was very happy with and the other I was never able to become satisfied with.
If it's something you've never done before there aree some things you should be aware of, refinishing involves several steps including steps that have you using dangerous chemicals for stripping the original wood finishes, sanding, more chemicals for sealing the wood etc etc etc...
Refinishing any wood product isn't anything I'd suggest doing anywhere near a living area especially if you have small children or pets, it's a process that should only be performed in a well ventilated area like a shed or garage well away from children and pets..
If you are still interested in refinishing the stock yourself here's a link to a Rifle stock refinishing kit
another thing you might want to consider is, there are loads of affordable replacement stocks available on the internet for the Marlin 75c 22lr
, <--one example of a website with some replacement stocks available
You might want to call them if interested and speak with them directly,, for 70 dollars I like the #1 pictured which I think is for the .22 Semi auto and the #2 is for the Bolt action