i used one of the earliest direwolf pack as a base for my 1.4.6 server but i've added several mods to it then and if i recall correctly the number went up to around 80 installed mods
after some time i've updated it to 1.4.7, some mods had to be removed (conflicts in existing world, etc) but overall the quantity has been upped to 106 mods.
i will definitelly add more mods (but will keep it at 1.4.7 as we want to keep the current world) in the future.
i usually wait for most of the people to master the newest mods and then i start tinkering on the copy of that server and i'm trying to add those mods that make sense, have no conflicts with existing mods and are not crashing the server; it's a tough process but the end result is worth the effort
question, were you interested in all of those 191 mods or are you just trying to put as many as possible, regardless of what they provide ? (i.e. - do you put two very similar [in functionality] mods in the pack?)