I used to be in cross country and track in highschool so I have a lot of knowlege in running.
You can lift on friday, but I wouldnt lift with your legs. If you do lift I would deffenitly warm up and stretch good before your run.
Also Dont eat to much before hand, that can make you pretty sick, because all the blood is in your digestive system when it shoud be in your muscles, and lungs.
As far as the pace I would go with what feels right. Start off at a decent pace, but not too fast. If you feel good, or feel like you have wings and could run forever, then keep going that pace, or take off like a bat out of hell. Or you could do speed bursts in the middle of your run.
I would cool down after the run by just walking around, drinking some water, and doing some stretching.
Thats about it.