If you really intend to get the different TMIC, it's worth the wait to get tuned for it as well. Dyno tunes in my area are about $400, and that seems like a pretty average price for a dyno tune anywhere. You can get e-tunes and road tunes for cheaper though. Anyway, If it takes some extra time to save up for it, you can just leave the car the way it is for a bit and then get it all tuned at once. I assume you're going to use an Access Port if you're flashing to stage 1, in which case you can do that and wait to save for the DP, 3PBCS, TMIC, and tune all at once. It's all up to you, but I would get a protune with all the parts at the same time so you don't spend that money more than once.