Keep in mind that you have a distance to cave walls where you can't pave - so better place supports and dig out an area for paving (and you don't need to plow when laying stones on cave floor and no need /way to pave on dug out areas - the plain grey ones)
Avatar by SacreDoom Java 8 - manually downloads - good to check for actual versions url here: viewtopic.php?f=42&t=40331 Remember what the dormouse said: Feed your head Feed your head