belt and pulley issues

[Big_Chevy_man]

ok so i did my engine swap and put my headers on i have a bracket kit for the alternator but i still cannt get it to line up is there a bracket kit that bolts to the head on eather side of the engine the alternator and water pump are the only things being ran off the engine none of the pulleys line up is there a difference between a 74 350 and a 63-65 283 for the balancer i think its the issue there i used my old water pump alternator and all pulleys but none of them line upis it safe to make spacers for the harmonic balancer pulleys or should i line up with a different pulley and make a spacer for the water pump pulley there is still around 4 inchs between the radiator

67 chevy lwb350 dual 3 inch sidepipes

RIP 283