My very personal advice is: consider the opportunity of being son of yor age !(posted 9861 days ago)HP 5 and Tri-x are undoubtedly fine films, but the market offers today other materials that - in my opinion - should be considered.
Specifically, give a check to some T-Grain film (Ilford Delta 100 and Delta 400, Kodak T-MAX 100 and T-MAX-400).
You will obtain VERY different results if compared to those you were used to obtain with "classical" films: the negatives will show less grain and the tonal range will be increased.
It's up to you to judge whether the results satisfy your photographic needs or not, but give a chance to the newest technologies: it's worth the effort.
Regards
Carlo