It's a bit sneaky, I caught it on mine, but the hose is on the inside of the seat stay and in our wet climate grit on the hose starts to wear. I've seen a couple where the seatstay is totally worn through and the owner didn't even know it.
I loved my 134dl, it was my first fully squishy bike and I bought the used frame and built it up pretty much exactly like you've spec'd it out here without the angle set. Still mad at whoever broke into my shed and stole it.
One problem with those bikes was the rear brake hose routing at the chainstay. A lot of used ones will have worn through chain-stays.
I have one of those from about 2009, and it's been one of my favorite shirts since then. Still works fine even though the sleeves are a bit tattered and it's got lots of stains from messing around with bikes.
I definitely notice bar height and seat height, but probably not a 10mm change. My 40mm rise bars are much more comfortable both climbing and descending than the 15mm rise bars my bike came with. Crank length is more about pedal strikes and climbing for me. Seats and grips are also a comfort issue...