Custom tres leches pinellas county

Hi everyone, me and my family are heading up in a few months to late-celebrate gmas 80th and coincidentally my moms 59th falls the same weekend we’re going. I wanted to surprise my mom with a tres leches cake since that’s her favorite. I myself am a baker but the bnb we’re staying at won’t have the proper tools for me to make it myself so I’m seeking a bakery or at home baker that makes half sheet custom tres leches cakes. Not stacked and rounded decorated ones. Like old school aluminum pan completely saturated in milk sheet cake. If anyone know a bakery/baker that does it this way in the pinellas county area please swing them my way! Thanks in advance ❤️