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Should I send them away for grading or not pricey enough?
I wouldn't and remember, it's not always value that makes a coin "worth" grading. There many $1000+ coins out there that are not worth grading and there are many $100 coins that need to be graded.
Authentication and resale value are two of the main reasons to have a coin graded but there are others. Your coins are clearly authentic and will not be worth much more if "slabbed".