I carry the 9mm Springfield Range Officer Operator for duty carry. I have a few things to think about for any 1911 with a rail and duty carry. Make sure whatever agency you are applying with allows a 1911 in the caliber of your choice.
Of the two choices you'd listed, I'd do the TRP. If stainless steel is an option for either go with that. Oil it well on a weekly basis. Whichever you buy prepare to think of it as a business expense, because it's going to get scratched, rained and/or snowed upon, rolled over on, and bumped getting in and out of buildings and cars.
Thoughts:
1: Putting a light on a 1911 increases the weight and bulk. I elected not to do so. The weight (gun, belt, armor, etc) does add up when you hit your 40s and 50s. Many of my colleagues have hip and knee issues.
2: because I chose not to do so with the light, I had a hard time finding a duty holster. G-code makes one, and that's what I am using, and am happy with. It's a bit loose, however it is still a level 2. Good luck finding a level 3 for a railed 1911 with no light (let me know if you do)
3: With a 1911, you are limiting yourself in capacity. It's a choice I have made, but make sure you are comfortable with it. I've gotten very good with mag changes but carry 8 mags at the range for training, 4-5 for duty. I put Archangel grips on mine, and they have a large angled magwell area at the bottom. Good investment. Most of LE is going to the Stacatto 2011 in 9mm if they want a 1911/2011 pattern. Haven't shot one, but they are lighter with their 17 round mag compared to mine with 10 rounds.
4: A railed 9mm 1911 with or without a light keeps the muzzle flip down for wicked quick and accurate double taps. We are going away from double taps to controlled pairs though, so that advantage is limited.
5: make sure you can do simple 1911 gunsmithing at home. You should be able to detail strip at the least. I replaced my trigger, polished certain areas, and lightened several springs to make it run better.
6: Red dots are becoming more popular. My 1911 carrying mentors and trainers have almost all moved to them, but I am sticking to irons for now. Consider if you want to mount an optic and the policies of the agencies you want to apply with. They may also complicate getting a holster.
If you have more questions, feel free to reach out.