You're welcome. Wish I could go with you but I was in "old country" in 2010 so the visit is still fresh.
As for gifts, it is hard to tell you what as their stores are stacked with products. You could make copies of photos of your ancestor to give to each family; you could bring something that is made in your state. Again with the limit on the weight and size of a suitcase we can not bring "America" to them anymore. It was much easier, in way of bringing gifts when the country was communist. Something made in USA with a Made in USA tag that way for sure no store in Brno or Praha will have it.