I'm no brain surgen(see--I cant even spell it!)but I have rebuilt many carbs over the years--all you need is basic tools,and a nice clean table or bench to work at,a small magnet thelps keep all the screws and clips from vanishing,they usually give an exploded diagram in the carb kis,and a few spare clips.It is kinda tricky at first,but you will gain confidence after you take it apart a few times.If you have accsess to a junk carb,it might be wise to practice on that one first.The quadrajet isnt the easieast one to rebuild,but there are lots worse to do also.
Gee--I must be getting old--you make it sound like all the dinosours like me that can rebulid carburetors have already bought the farm!
Just follow the diections and make sure you do the float adjustments properly,also make sure the top bowl gasket is the exact match to the old one,they usually have more than one in the kit(and hope whoever rebuilt it the last time used the right one!)and you should have no problems--it helps to lock yourself in a room away from the kids,wife,phone and pets,you need all your concentration while doing a carb over,its easy to get distracted and lose little springs and check balls if you arent careful.
If you are unsure of your skills you can buy a new or rebuilt carb,new is around 300 bucks,a rebult will run about 125 bucks,and a kit usually is about 15-25 bucks--a new float is highly reccomended,and not usually included in the kit,another 10 bucks or so. /forums/images/graemlins/crazy.gif