Never fear that a pawn shop does not know what to sell something for...if they do not know what to sell it for they will not allow much of anything for it in the first place...I just patched up a large area on a badly delaminated bow with Loctite 420 and I have a feeling that bow would shoot a long time without any further issues...turns out the owner only wants to make a nice wallhanger out of it so we will never know...not sure how buying that Grizzly and working on repairing it would be anything other than a very inexpensive learning experience for you...I have a feeling guys like Bowdoc started out the same way...and btw I have a feeling Loctite may make a couple of products that are even better for that sort of repair, although I doubt you would ever find anything better than 420 for it intended use...their website has a great application that walks you through the intended usage of the product and I know they have some that are indicated for high flex situations
DDave