Ready to build my first board

Planning on using foam core at first:
1. Do you lay up the fabric and epoxy on just one side at a time...can't tell from pics/videos, or do you do both sides at the same time and vacuum bag on the rocker table?
2. Do you bond the ABS rails to the foam before glassing? What do you use to bond the ABS to the foam?
Thanks for the help...I'm sure I'll have more questions down the road.