There are many ways to skin a cat. I would probably not use the T1k to color-up the T100 because it's likely that the T1k will be colored off themselves, so adding them is a bit inefficient IMO. I believe that the 275 already in play are sufficient.
For future reference, one way to check if you have enough is to
- Check you have enough for the starting stacks
- Deduce the probable last level. In your case the "20BB rule" suggests around 20k/40k.
- Deduce which the lowest denom needed is for that level. In your case the 5k.
- Does that denom and the ones over it cover the total chip count (don't forget round-ups when coloring off chips). In your case: Do the 5k and 25k cover 1 million + round-ups? Yes, you have over 2 million
- Are the quantities in #4 playable? Yes, 130 5k is plenty.