Andrew
If you started at Moleside the next few campsites are all approx 10km apart up to Pattersons. From Pattersons to Simpsons is 17km but if you didn't want to walk that far you can come down North Nelson Rd and probably knock off 5 km and whilst its a gravel road it still generally through nice bush until you reach the tip. BUT the area around Donovans is probably the prettiest, but no OFFICIAL camp at Donovans, there's tables, etc: but not toilets shelter or water.
The distance between camps is listed here
http://www.greatsouthwestwalk.com/track/campsites.phpI'm not much of a fisherman but I've seen plenty of fish being pulled out of the Glenelg. Brim I think, but check with someone who knows for sure.
I don't see a reference to the friends doing transport any more. Its 4 years since we used that service and there weren't commercial companies doing it then. Not sure what the sponsored links charge but maybe ring the tourist info centre at Nelson or even the pub there. The walker liason officer at the friends' email is
[email protected] , worth a try
On the other hand there are intermediate camps like Pritchards, Battersby, etc; that are car accessible. We've also walked where I drop my wife at the start, drive to the end of the days walk & ride a mountain bike back to the start
I think this shot is from near battersby

& this near Pattersons
