can you just sit the gemmi rad in where you want it. Mark where the holes are on the rad. Then drill holes and nut and bolt the rad in and neatly cut out where nesisary?

I would like to ask who has or knows the best way to install a Gemini Radiator?.
I was just going to make some custom brackets and re use the factory holes. but i then noticed the hole for the air flow is smaller than the size of the new radiator ?
if i cut the front to let max air flow, then i loose the factory radiator holes.

I under stand i will need to cut something out to allow for my small-ish intercooler, but i dont want to hack the whole front if i dont have too. any suggestions please before i do the surgery ??