LAS approaches

Some questions about flying to LAS:

1. The RNAV RWY 1R (http://naco.faa.gov/d-tpp/0903/00662R1R.PDF) has
two IAFs: BOACH and SKEBR. I can find BOACH on the enroute chart (on
V21 between WHIGG and CRESO) but not SKEBR. Where is it?

2. Same question for KACCY intersection, which is the IAF for the
VOR/DME-A (http://naco.faa.gov/d-tpp/0903/00662VDA.PDF)

3. The route I get from DUATS low-altitude auto-routing (from VNY) ends
at OASYS (on V394), which does not appear to be the IAF for any
approach. Am I missing something? Is DUATS broken? If I were cleared
"as filed" and lost comm, which should I do when I got to OASYS?

Thanks,
rg