I can feel your pain - smile. In street clothes, I typically wear a 34-36 length inseam and 36-38 sleeve length. When I started looking for the proper length hiking clothes back in 2006, the market was very thin and it still seems that way today. Like someone mentioned, REI does offer some selections in "TALL" versions (34 or 36), yet I would not call them UL pieces.
I ended up going for lighter items and just got used to wearing my pants a bit lower and got over the arms not being "quite" as long as I was used to. Now that I have been doing it this way for so long, it is just the norm for me. This said, Montbell XL pants have a 34" inseam and as long as the waist is a draw string cord, it works for me. I have been hiking in their old stretch wind pants (6 oz) since 2006. These are no longer made, yet they now offer some Dynamo wind pants (3 oz) that might work for you. I like the older model as they had 2 zippered front pockets.
I know Zpacks makes cuben fiber rain pants that I have heard some hikers wear all the time and they have held up very well. Joe at Zpacks can also make you a custom pair in you want some extra length. I am in the process of doing this for the rain pants, yet currently, don't plan on using them for everyday use right now.
Sadly, I think there is just not enough demand for these longer lengths so our pickings are slim. I may need to learn to sew when my old Montbell pants finally die - ha ha. Hope this helps and good luck with your search. Email me if you have any other questions as I'm sure we both are fighting the same battles.