The chances of finding anyone in Trim is zero, and not much better in Navan. You're best bet is jump on the bus to Dublin. It will take about an hour depending on traffic. The last stop will drop you at the main bus station. Outside the bus station there is a tram stop, 2 stops towards the Point and you will be a short walk from the IFSC Brazilians, plenty of choice. I recomend Amanda. Taking the tram two stops in other direction and you will be a short walk from Temple bar, I recomend Amy
Both are worth the journey, if you have a car it would take less time, but then you can't have a post punt pint