Wirelessly posted (BlackBerry9000/220.127.116.11 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/102 UP.Link/18.104.22.168.0)
2. I used a red about two feet away due to less space than you have on Ilford wt rc paper. No fogging.
4. They make spotting dyes and even pens now.
5. I fix for 1.5m and wash a lot longer than one minute. More like 10-15. Might be overkill but the water runs through my tray and there are generally two prints in the tray at a time and I cycle them through as I print.
1. and 3. Don't honestly know.