I believe it is possible if you have the determination and the time (and don't care about dp)
I just did it on the ATS (I didn't want to have to mess up my live character by getting the dp) Before anyone says "oh the ATS starts you at lvl150", yes it does, but I didn't fight anything and I didn't use my protection auras or speedup (kinchers down there were teleporting 100m to eat me with no warning so no speed up, and they'd just follow me until it ran out if I used protection) and if I get attacked I'm dead anyway, so even my huge health just means it takes longer to die.
Basically
- The trip from Zora -> roots is easy. Never done it before, got there first go no problems.
- The trip in UnderSpring is the hardest obviously. It took me about 3hrs of running around and lots of dieing, but if you can get to the karavan 'porter in there it is all but done. Put your radar on 125 for most of it, generally follow the west wall up until just before you hit the first bandit camp, then cut across to the border post to the east.
- Go up through shooting meadow and then cut back across to the west wall. Continue up the wall until you reach the second bandit camp, and then wait until the coast is clear before sneaking round between their camp and the wall.
- Then its just a little way to the karavan 'porter so you can buy a ticket and return there anytime you need (no more starting from the beginning)
- After that it is basically more of the same, this time cutting east to the other outpost and back again, then following the west wall up until you get to the exit.
- The trip from roots -> Dyron is a bit tricky, but only because there is no definite route through; the ocyx, varinx and kincher/kipucka just wander all over the place. Head for the little Renegades camp (not the Firebrand bandits or whatever they are called) and wait for a run (put your radar on 50m and just move through the gaps in the aggro as they appear). For this bit of the journey you are more likely to get some help, because people will be around Dyron.
Of course all of this also requires lots of time and patience to wait for the mobs to get out of the way for you, or to adapt the plan to move around them. Taking advantage of the fact that they won't eat you while they are eating something else is handy too. Since it sounds like you don't care about the dp then I suggest just keep trying and don't let it get you down. I can't guarantee that any of this will work for you, but its just the advice I can give you from my experience.
Patience, determination and a whole lot of luck is the key.
That or every player in the game getting down there to wipe the kitin out for you.
Edit: Or of course you could do what I did a coupla months ago on the live server, and wait for Nevrax to make an event where everyone gets 'ported to a battle somwhere, and then just pick the other 'porter "back" to Pyr. I wouldn't get your hopes up for this one any time soon though
Also, I'm unlikely to be able to help you get the route done, because I would have to get to Zora in the first place, then take my dp back with me (I'm Fyros on the live server). If still no-one else wants to help then I might be able to make a zorai character and show you the route though... no promises.