How do you determine "ride height" to make suspension mods??

I was really afraid that was going to be the suggestion. The tires and rims are going to be a nice chunk of change (that I am still working on saving up for)

I was also hoping to use housing I have with out cutting it down, but from the sounds of it that is not going to be the case either.....

Where's my ski mask I have to go to the bank! lol lol lol (banker's with hands in the air) Ha Ha Ha
Yeah you will end up cutting down your housing sometimes as much as 4 1/2" like I did.