questions on suspension

[68GMC454]

well since my 68 gmc is rear leaf springs..can it be converted to coils,,with ut going the 4 link way..would a coil spring set up out of a earlier trucl work,,or is that to big a headache to get into..i cant weld,,and reall dont know anybody who can,,so im wondering if they would just swap in,,or just alittle welding...i know where there are quit a few junk trucks that have the coils so the price would be reasonable to snag a complete rear end, coils and the rest of it..
billy