Gts25 rb25det swap help?

ok i have a 1991 r32 gts25 manual skyline and im looking at doing an engine swap to a rb25det i ha a rb20de in it atm as the rb25de was taken out and swaped to the rb20 ages ago i just wana know what is needed to do the swap can i just use the rb25de mounts for the 25det engine or are the 25det mounts different i need a list of all the parts i need like ecu etc and will it straight bolt in and will i need to change the loom to a rb25det loom or just splice the 25det into the stock loom since its a 25de loom thanks