This make me think of A Midsummer's Nights Dream.....and it would be a óperfect idea for an engagement party..... I would do half rounds in a "U" shape around the centerpiece of a glorious food table... so everyone can see one another and talk... what fun
Simple Wooden theme w/Candles - could tie into cross, quite simple and cost effective? Stack some up with beautiful white shrowd and earthen chalice w/pitcher of wine for last supper? Have the 'stations' outlined on the wooden blocks?