Long Bed Measurements

[402Bowtie]

Would someone be so kind to please tell me these measurements:
1) Total length of bed...is it exactly 8ft?
2) Length from inside of bedrail to the inside of other bedrail.
3) Length from outside of bedrail to the outside of other bedrail.
4) Measurement of the widest part of bed (from one rear wheel arch lip to the other arch lip)

I am trying to plan a road trip....Thanks for the help.....John