Pyrantel, ivermectin dosing for kittens

There was a long involved thread here about how many cc's of this preparation or that should be given which left me totally confused, does anybody know the basic mg/kg of med that should be given?

If I know that I can go to the farm store and see what they've got. I have this kitten who is 12 weeks old now who was literally half dead when I found him, unconscious, hypothermic, dehydrated, and I put him in my egg incubator and fed him Gatorade with a syringe to rehydrate him, then Clavumox , it has been going on and getting better for 9 weeks now.
Anyway vet gave him worming med based on his weight at 3 week intervals and either it didn't work or he was reinfected (he has an alarming habit of licking the floor!) and last night the little guy vomited a live hookworm. So it was back to the vet again, 7th time in 9 weeks!
So I have the makings of a million dollar cat.

This leaves the other 10 pets (and innumerable ferals/barn cats visiting from the neighbors) rather neglected. I also have three dogs but they get Heartguard plus every month so I'm not worried about them.
I am trying to figure out if I can buy enough "stuff" to dose the horde without taking each animal to the vet to be weighed and dosed.
I'd rather do this at home. I can weigh them, convert the pounds to kg myself. I need to know how many mg/kg. I saw something about 20mg/kg but by the time that answer came up I couldnt figure out which drug they were talking about!!!

So please, how many mg/kg of pyrantel? Ivermectin? Anything else?

since you have a Vet that you see fairly regularly, can you not simply CALL them and ask the question?  (Sorry, I have never needed to give any of my cats dewormers, so don't know the answer, and I looked for thread on this an only found the dosage for CATS vs kittens and for pyrantel only)

If you can get generic 50 mg/ml pyrantel suspension (usually sold for horses), I give .1ml per pound for kittens. That's less than the max dosage but more then the minimum dosage (2.5mg - 5mg per pound) so I think that covers it pretty well. I wouldn't mess around with ivermectin because it's hard to get a small enough dosage for little ones. You have to re-dose in 10 days to kill the newly hatched worms, I usually give 3 doses 10 days apart to make sure.

You can also get liquid Safeguard (fenbendazole) (the one sold for goats not cows) at farm stores, if they don't have pyrantel suspension. I don't remember the dosage off-hand but you can find that info at: http://www.merckvetmanual.com/mvm/index.html