Building a Custom Bar

Hello! I am looking to modify an existing cupboard to accommodate some bottles of wine and liquor so they wont slide all around during travel. In the past I've just thrown the booze on the bed or in a hamper, but I'd like to have a designated space for these things and to possibly leave the hard stuff in there year round.

If anyone has already done this, would you mind sharing photos? I am looking for ideas right now.

Also, does anyone know if it is okay to leave liquor in the trailer during hot months? Would it turn skunky like beer?

Thanks! I'll be sure to share photos once mine is done :)