Im new to gold and would like to get some advice/opinions. I have always bought Silver but would now like to start with some gold coins, I cant afford to buy the bars or larger coins so I found the vintage Pesos on APMEX. The were 2 or 5 pesos. Im not looking to sell these, but to have for a rainy day investment. Are they worth it? Are they easy to sell trade should i need money?

Thanks in advance