Opinions Sought About My New 1959 Mexico 20 Peso Restrike

Hi folks,
Complete newbie here.
I traded some gold bars and coins for some other gold bars and coins.
Yes, my metals dealer loves seeing me.

Part of my trading purchase is a 1959 Restrike 20 Pesos coin.
In the larger trade, this coin was purchased by me at what turned out to be the same price I sold to the shop my old 2010 Gold 1/2 oz. BU Eagle.
I think I got the better of the trade. I think.

I am unsure if this new coin is a candidate for grading.
I may need a simple, cost effective way for me to get this new addition graded.(Suggestions would be appreciated.)
Can you grade, but not slab a coin?

What is your opinion of the coin? I compared it to many, many and only saw a few better- I think.
At least it's not one of the ugly matte finish coins, it does wagon-wheels.
I've seen a video that places the minting of wagon-wheels finish in the 1960's.
I've found a noticeable impurity blemish at the very top of the obverse. There's not many 20 Pesos without some blemish to be found.

This coin was photographed with a brand new camera phone, should I try to get it better with an SLR digital camera and lighting ring?
I included a photo of the Sun Stone detail, it should carry the ability to magnify it higher. I can't believe how hard it is to photograph, a bit of it is out of focus- all in the size of a dime.
The complete area of the Sun Stone is very crisp, sharp- I'd say it's a really good strike(s).

I'll appreciate you helping me figure what to do in moving forward.
To me it looks pretty enough to keep. But if it's worth significantly more than just a bullion coin, that might change.

Thanks,
Jack