Well the 550 Paracord turned up.
Managed to grab a couple of hours yesterday while my lot were out shopping and visiting friends.
Unravelled the shelter from its bag and set about changing all of the guy lines......replacing what was there with the 550 cord.
Also made the ridge line up and added a Gator clip to one end and a "Nite Ize Figure 9" further up the line.....recommend them
Two Prusik knot loops in the middle of the ridge line mean I can move the shelter left or right along the ridge line if I need too.
I have made up the ridge line to measure about 25/30ft long so it should cope with some large trees that maybe spread apart.
I like having the extra length on the ridge line as it also gives the option of drying.......kit airing lines..... coming off of your anchor trees.
Got a damaged paw at the moment so progress was slow......but achieved.
Hoping to get out and try to get some footage next week.