The pair fight on May 11 to contest McCaskill’s WBA and IBO welterweight titles in a fight shown live on Peacock in the US (click here for details).
Price has only had six professional fights, but she does not see that as an insurmountable problem against her hugely experienced 39-year-old rival.
"I believe in my ability, my skill level and I've had six fights now, each fight I'm getting better and better," she told Sky Sports.
"I believe that in time I will season into a great professional. I believe I will become one of the greatest to take over and do that.
"Look at my last six fights, I haven't really had to dig deep and go through the gears. I expect Jessica to test me, she'll come with a dog fight and it will get tough in there but I've been in tough scenarios like that before."I've been up against legitimate girls in the amateurs, I know this is different, but I've been in scenarios like that and the next eight weeks we'll go through all that. I'll be prepared no matter what."
Price is keen for the step up in pressure, quality and crowd size that will come with the fight.
"Obviously the ring walk and having the crowd is amazing, I'll soak it all up and enjoy it but I know as soon as I step in that ring there's only going to be one man I'm listening to and that's Rob (trainer Rob McCracken)," she added.
"I've got to be fully focused. That's one thing I do well, I block the crowd out. It's going to be an added pressure and different, but I'll soak it up and enjoy it. I know when I get to the ring it's down to business.
"As soon as that bell goes she's not my friend anymore, she's going to bring it to me and I'll be ready. It was my dream to be world champion and to have three on the line I'm going to go for it all the way and I believe I come out on top."
Live on DAZN: Watch William Zepeda vs. Maxi Hughes on March 16