was wondering if its possible to change the headlite configeration in my 91 blazer ? i have the little h4701 and h4703 style headlite with the even smaller prongs to plug- in with. i dont much like the headlite plug-in pigtails either. was wondering if its possible to convert to the 88'-up halo/projector style if i find a donar vehicle in the yard ? its a little more difficult to find the these smaller bulbs to cuz wal-mart doesnt carry them any more ? auto zone carries them but not halogen. ebay doesnt have the h4 upgrades for my style that i can find. any help is great. thanks in advance.