would i have to do any modifications to my dime o flame if i were to put an original floyd rose in it?
Has it already got a whammy? If it hasn't, you'd need to route it. In other words, if it hasn't already got a whammy, do not attempt it.
You shouldn't have to, it should be just a bolt-on job, if it has a licensed rose on it. There could be some clearance issue though. It helps if you can get some dimensions on the rose and compare it to your outfit you have now.