Welcome to the site.

To start, if your rifle has a sporter barrel and a plastic stock is is more than likely a model 11f. The model 10's are a tricky buck of rifles, the sporter barreled models all have wood stocks, the varmint barrel guns are tactical models. Not to throw you off but they are basically the same gun.

The stocks are a very simple swap, with only a few small simple fitment issues at worse. You may have to clearance out around the trigger or trigger guard, and that is usually the worse of it. As long as you get a stock for the 4.4 screw spacing (Center feed) you should be fine.

The bolt handle is a simple replacement, the hardest part is breaking the rear screw loose for the first time. What I found that works best (And many others so this as well.) lay it on a carped floor, with your wrench in the back and stand on it. Should pop loose and then you can change it out. Don't worry about anything fling out when you take it apart because there is nothing under pressure. Don't worry about firing pin pertusion, it takes a few tools and know how to change it, and for the most part they are set correctly at the factory, there is no need to change it. The only problem you may face with changing the bolt handle is getting it 180 degrees out. The bolt will still go into the gun but it will not cock. The easiest way to avoid this is leave you old handle on until you ready to change it and take the one off and put the other on in the same way it was put on. It will only go on one of two ways.

I highly recamend Sharp shooters Supply as far as aftermarket parts go. They make GREAT stocks, bolt handles, and triggers.