There are a few home made methods that you may want to look into. Some actually work quite well.
That's where I came from, happy day when I moved on to real tools.
To answer a the cost question, I've probably spent around $500 on mine. Every caliber needs it's own pilot. I look at it this way, I'm probably saving a trip to a gunsmith and about $50 cash everytime I use it. I'm so far into free now its silly.
And, if I have a pilot for your caliber, drop in and in a manner of minutes you'll be on your way. a bit more if I have to cut an inch or 2 off your barrel.
I cut this cancer off one of my rifles, after that and a quick re-crown, MOA to 300 yards.
To put it into perspective, the rifling was a bit pitted, MOA is more than I expected.
In CGN speak it's got "strong rifling with some minor staining".
Bottom line, with a good crown, it still shot as good as most 40 year old hunting rifles.