need info on heaterair cond mount and install info way different than the 33 hot rod

[Houdini]

got the radiator and condensor all done and fits
looked up the 32 hoT rod and parts manual for the heater and air cond its way different than my truck and am lost cant find any info on mounting my unit which is 2x longer than the one in the instructions
help i dont want to mess this up
HELP HELP

[Houdini]

mounting it not much extra room and had to make the brackets