Freezer getting water drops on inside

I have a magic chef RB193PW refrigerator/freezer unit that has run great for us since we moved into house, but lately there has been some condensation like circles/drops of water forming across the front top inside ledge of the freezer compartment.

I think that this is probably a bad gasket, but wanted to see if anyone thought this could maybe be something else.

Also- where would be the best place to get a decent price on a replacement gasket?

The gasket is the mostly likely, the door may not be sealing completely. He’s the part [COLOR=#0000ff]Door gasket, fzr[/COLOR] which APP here is the cheapest retail parts I’ve seen.

Nat