It would pay off for you big time if you just leveled a new priest or druid to heal the paladin along the way you could manage instances pretty simply i would think.
My line of thought was that the paladin would heal till my priest joins in...

So I would be using voidwalkers to tank till then

My computer cant handle 5 yet, 4 is bad enough as it is on this computer... I'll be upgrading early next year and will start the 5-box then

Thanks for the help all