my car steering was making noise on uneven road like 10 months ago, shown it three different mechanics all said complete rack needed to be changed, and price of kabuli rack, well you must have an idea thru the process you went. as last chance showed it to office mechanic who took a test drive and said, there are two possibilities that either rack seals are gone and rack is vibrating or the rack ends/rack end tie rod are gone, he opened the tie rods and turned the steering to one side this makes rack to come out he then shaked it well but here was no play from both side and thank God my rack was saved, changed the tie rods and ends and boot in like Rs.2800/= or so and we were good. all this written so that you can compare your scenario to mine.
now comes the question of changing seals in steering rack, no matter where you go you'll hear that they wont last and will again get leaked, my question is if it is so then why store keepers keep seals and why honda will ever produce rebuilt kit. my opinion is all those who say that seals wont seat properly or will leak cant do a proper job. now for me your seal job is test scenario and i pray it goes well. do share your experience of the problem too as in our case steering rack is not only hard to find but will cost approx 25k here in pindi.
regarding the power steering fluid, changed it myself like one month ago with honda PSF, it costed me Rs.850/= and honestly i even dont know either its minrel or synthetic, at the end how often do we change fluids other than engine oil, so i didnt gave it a second thought and filled with honda psf.