$60
To answer your question, it depends on the draw-knife.
When younger(30 years back), between projects, I hand peeled trees/logs for log homes (you can't call them cabins) and once paid over $100 for a new one made in Europe; didn't like it and traded it for a Labrador retriever. As with bows, what one person likes often varies from one person to the next. If possible, you should try to use a few different styles before investing that much in a draw-knife. After using one for a while you can tell if it will be a good one for you by the balance the first time you lift it. I went through a couple dozen draw knifes, both new and old ones, over a ten year period before narrowing the stable down to half a dozen that worked best, for me. I try keep at least that many on hand for my winter bow building classes. The price paid for those I still have was between $2 and $35, as you probably guessed, the $2 one works best and is used the most. As mentioned before, get one with good handles, which is hard to determine on the auction site. In addition, get one without any pits on the first 1/4-1/2 inch of the blades leading edge, also hard to determine on the auction site. The shape and angle of the handles will determine the effectiveness of a draw-knife along with the type of logs/stave it is best suited for. You will have more control with handles that come back at 90 degrees from the blade but take the skin off your knuckles when used on large logs/staves. For hogging the bark off large logs draw-knifes with handles close to 45 degrees will save the knuckles, but the trade-off is less control.
I would pay $60 for another draw-knife like my $2 beauty but wouldn’t pay $10 for the one I traded for the dog, unless it was to resale at a profit.
Oh ya, if you want to shoot heavy bows, from both the right and left side, peeling logs will get you into the 80-90# range after 4-6 months, if you work at it.
One last note, I am a sucker for ones with the folding handles because when folded they protect the blade from nicks, the handles spread apart thus saving my knuckles on the larger logs,..... and they just look coooooool.