Victorian wedding picnic

I am hosting a wedding reception for 150 at home on a lawn under big trees by a lake. It is to be a picnic feast in the style of Wind in the Willows meets Jane Austen if you can picture the scene. The food is being catered by a good friend, who is both practical and aesthetic. The menu she is suggesting for this possibly hot hot August mid-day affair has spiral sliced ham and smoked turkey (from Honey Ham) as the main dish. She insists from experience that this will be the best tasting, best looking, biggest bang for the buck (in terms of prepping and serving as well). The plan is to accompany it with a chutney and fresh baked rolls or bread, salads, etc. There will be mounds of vegetables, fruit and nuts.. I know we can do a fabulous job with the presentation. The hors d'oeuvres can be quirky and beautiful. But somehow I keep drooping at the thought of the ham and turkey. It seems so... hokey? pedestrian? Please help me see that she is right, because I'm sure she is. I want the food to be delicious and special, and am afraid guests will perceive it as an unimaginative choice.