Recommendation For Coin Scale Please :)

I think you should spend a few bucks more and get one that weighs to the nearest 0.01 gram. I'm happy with my Digiweigh DW-100AS, found on ebay.

IF the main reason you buy a scale is for the Lincoln 82's, you could have saved money. Almost anyone here has been made aware of the famous, simple, easiest scale and you make it yourself.
Take a popsicle or ice creame bar stick, pencil, glue and your almost there. Best if the pencil is a 6 sided one. Place the stick on the pencil so it balances with a drop of glue at that point so it stays in place. When dry place any Lincoln Cent dated after 1982 at the far end of one side of the stick. now place any 1982 Lincoln Cent on the far opposite side. If the 82 drops down fast, it is Copper. If it sort of lingers or balances, it is the Zinc ones.
Simple and you get to eat what was on your scale before you made it. And it is resuable forever and batteries not required.

For the specs you gave, it seems you only need grams in a 0.1 graduation. For precious metals you want also ounces troy, and others come with ounces (avoirdupois) and grains.

The larger the graduation the bigger the price. You want a small scale, from 1-50 grams in 0.1 graduation. The rest is up to you with brand and supply (and hence price).

Larger scales (kilos) will cost more, too. Any handheld digital scale will do you for on the go, or a hang-weight for home-use, or a triple-beam. But digital is the way to go.