Solo go up the big traverse, mostly easy to moderate scrambling depending on the line you take on the ridge, very similar in difficulty and length to the opal traverse. Coming down from volcano peak to the road is an absolute pain, it took me 4 hours to get to that point and a further 2 hours to do 1 km of the most brutal bushwhacking ever, just a spiderweb of burnt fallen trees at about waist height on quite steep terrain. Follow the gps line and you should be able to get to the logging road to get out of there… Good Luck