'07 VTi-L to Type-R suspension conversion

[thaerune]

Hey all, this is probably my second post so cut me some slack.

I have an '07 Vti-L sedan. Bought it off of my grandparents stock as a rock, sheepskin seat covers and all. I found a good deal on a stock 07 type-R suspension, but, they came off of a hatch. I was wondering how difficult the conversion would be? would this actually work would there be much of a ride height drop?
It's worth noting that I'm trying to make the car something of a sleeper. So I don't spend my life on the side of the road chatting to the police about how cool my car is.