I have not seen enough 70's bowling ball to tell you if it fades to green,wht you could do if they are the same size,or if you have extra parts, You could put them together to see how each sounds,as far as value,I don't know what you paid but used lugs to complete them would not be hard to find, maybe you could buy them for around 5.00 a peice you could probably get the most money for the 60's black oyster,shame the badge is not there,but the wrap looks good on it.