I got my pedals, flywheel and clutch from Jeff at Merkur Midwest. Bought the T5, bell and clutch lever from a guy parting an SVO Mustang, so no issues with the pilot bushing. Bought the expensive 2 piece DS from Rapido. I had a clutch cable from who-knows-where and the speedo cable reused. Jeff may have helped also with a firewall rubber grommet - I recall I did a stock set-up, but I can't recall where those pieces came from or if all XR's have a plate there. I just don't remember. Also bought the pricey Euro console from Jeff (all his parts were reasonable, but since the console is a "luxury", even $10 is a lot!). All worked well, but a guibo is nice if you want it as smooth as stock. Even with a good DS alignment and a 2-piece shaft, a guibo is really needed. If Fiat 124's have them, you need them with IRS - unless you have a very short shaft like a Corvette or E-Type.
'86 928, black, 5sp, red full leather, 55k
'91 FZR 1000
'64 XKE FHC, in a thousand pieces
2003 BMW Ci (just like an XR!)
'89 XR, red family car