What is the cost difference? In my non-expert opinion, a tie rod end supplied by a major manufacturer is just fine. I have never seen any tie rod end fail that didn’t have a very very long life. Dust boots, however, I have seen many dried out and torn. If the joint moves smooth and is tight I just put a new dust boot over the old one. I cant recall when or where but I purchased a box full of dust boots that fit perfectly on D1s. I doubt they were even a dollar each.
When I do come across a bad one, usually very dried out but not loose, I try to replace with ones that have grease fittings.