SMALL TOWNS website suggests that you hire experienced archive researchers for obtaining Czech records or hire one after you have pulled records from Czech archives online, for review for accuracy. The Czech archives no longer accepts research orders. The subpage RESEARCHERS FOR HIRE under main page Czech Work includes several professional firms that you can hire including one firm right in Trebon.
From USA, will work on your lineage for a fee. I can read Czech, old German script, and Latin — and translate for you. JudyNelson08@gmail.com for discussion and quote.