I received an e-mail from Hannia - Mighthelp who said you may need my assistance with your research in Volyn.
I live in Volodymyr-Volynskyi, it's about 25km from Turopin and about 40km from Turzysk. As far as I know, the old RC Church in Turzysk was destroyed, I am not sure there was a new one built. I can go to check, as well as check whether there is any cemetery preserved. I think it is also worth visiting the museum in Turiysk and talking to the local historians.
Here is the list of metric records from Turzysk Roman Catholic Cathedral available in Lutsk Archives (including the information on the citizens of the villages of Bobly, Verbychne, Dolsk, Zadyby, Tulychiv, Rastiv, Radovychi, Obenizhy, Lityn, Klusk, Zadyby, Mokrets, Blazhenyk and TUROPYN):
Birth: 1799-1822, 1828, 1848, 1849, 1852, 1862, 1863
Marriage: 1828, 1848, 1849, 1852, 1862, 1863
Death: 1828, 1848, 1849, 1852, 1862
Confession Lists: 1852, 1853, 1855, 1856-1858, 1860-1866, 1868-1877, 1880-1883, 1885, 1890-1892, 1894, 1896, 1898, 1900, 1903, 1907, 1910
I must admit it is quite much in comparison with what is left on other churches of RC denomination. I can research them for you.
You will find more records in The State Archives in Poland:
Archiwum Główne Akt Dawnych
00-263 Warszawa, ul. Długa 7
tel: (22) 831-54-91 do 93, 635-45-32
They keep birth/marriage/death records since 1827-1847, 1850-1899
But for the research I can help you with your trip to Volyn as well. You will find out more at my webpage: west-ukraine-tours.com
Please, feel free to contact me.