Yikes!
I've ridden most of it, but not all in one go. That'll be tough...
I did something similar in 2003 when I rode to Rawtenstall, did the Rossendale Mountain Bike Challenge, then rode back. It was my hardest day out on a bike ever. Here's a
Wall of Text describing my adventure - save for when you are bored on a long rainy day!
PS For those of you who might be interested in copying this particular adventure of Trio's, there's a great description of a ride round the loop
here. Makes me wish my MTB was rideable - I miss it.