Hey Larry, Oh yes I do remember you, This was a post to the Triumph BBS 5 or 6 years ago. I decided to go with Ted Smith of British Auto Restorations because the system he offers is bolt in not welded in!
"First question, yes it works great. Second question, no the fan will need to be removed. Now for a little info. Over the winter I did a complete suspension rebuild of my 58 TR3A as well as the rack and pinion system. The worm in the steering box had worn to the point of having about 2" of travel. So I decided to investigate alternatives. I did as you, I asked questions on many different British car forums.
The different is really almost too hard to believe, turn a complete circle with one finger. As you can tell I am very happy with the new rack system.
There is some good info from Neil Revington from Revington TR in Somerset England. The unit he offers you weld in place, he gives some interesting reasons on why the Rack and Pinion system is better. The web address for Revington TR is
https://www.revingtontr.com/
I got mine from Ted Smith of British Auto Restorations in Roanoke, VA. There is no web site for them, his phone number is 540 989-5121 the rack he offers is bolt in and I believe about $850. That was 5 or 6 years ago I beleive it's about $1300 or so.
There is one other place that has Rack and Pinion for TR3's and it is Protek Engineering Unit 13 Bushells Business Estate, Hithercroft Road, Wallingford, Oxfordshire, OX10. Tel: 01491-832372
Good Luck and keep in touch and let me know how it's going.