Digital BW, The Print

hello, I am on a quest to get my BW prints to be like what I remember 
our old darkroom prints  looking and feeling like (it's been almost 
thirty years since!)

any way, That to me means slightly glossy print that does not feel like 
plastic. I use paul roarks curves with my 1280 and ut2/glop inks.

Results with kirkland are great, and not "computery" but only up to 
letter size. Epson prem semi-gloss is good if I use print sheild spray, 
but not quite the right surface. Premium glossy is too glossy. Epson 
premium semi-matte is exactly the right surface, But the image quality 
is not up to kirkland, and in order to get a good print I have to go to 
2880. Then, the dark areas are a little more glossy than the midtones. 
I Think i can fix that by adjusting the glop curve, no biggie. The 2880 
setting is Soooooo slow...

So now I just remembered that i have a whole box of ilford smooth pearl 
13x19 sitting here, also have some in letter size. WOW, the image 
quality is as good as kirkland, and with glop, there is a perfectly 
bronzing-free finish. Still feels too much like plastic, and the pearl 
surface can be reflective, but the result is really nice and not 
"computery"

"computery" is my new term for prints that make people say "did you do 
this on computer or something?" I hate it when they do that

So now my main question:
I know that ilford smooth papers are not acid buffered like kirkland 
and epson premium semigloss, but what does that actually mean in terms 
of years? The Epson papers have a really long rating like 200 
years.....so would the ilford papers last 50 years?

I have some work coming up that needs to be 8x10 (Kirkland) and also 
some bigger prints. I am think of doing them on ilford, instead of 
semi-matte,  just because of the speed, and slighly better image 
quality. As long as they will last a reasonable amount of time. As far 
as I can find, the test sites have not tested this paper with Carbon 
inks, so you cant tell if they are rating the paper, or the inks.

Thanks for any info! Doug M