I did not have a 90-T Nickel plated, but did have Doug Braker do a BT-99 for Me. He did a great job. No complaints. I thought it would muck up the engraving a little, but it did not. If it's something You like the look of, I would say go for it.
It would work fine but my suggestion is to leave it a satin finish do not polish it. When polished it looks like chrome and looks cheap to me.
The Nickel finish that Doug did on My gun definitely has a satin finish. Looks pretty good IMHO. I agree, polished would look off.