4 link front?

its not an abody but i trust you all will be able to help out. my 99 s10 blazer front end has gave me fits. the first one went out trying to get outta sand. so i put in a used one. it has went out just driving around lol not even in 4x4. so i want to go to something better and maby cheaper. i think i could get a solid front end and a 4 link kit for less then $1000. i am guessing 3-4 hundred fot the front and about the same for the 4 link then about $200 for coilovers. what am i not thinking of? lol and what issues will i have putting that suspension in the front? would there be a better solid front end suspension to use? if so what is it lol. or could i put a stronger ifs front diff in outta...? thanks guys lol