its very long quest but very intersting story. i got the exps but lost it eventually when doing the thor 2nd flr part of lost sibling. if u have friend to assist you its better.
I found warp clip useful in doing those quest made my time less doing these. if only I had the kafra clip that time,,,, its much easier.
Teleport clip is useful too. I use osiris clip to memo some place where i need to come back eg the one in mjolnir.
Prepare yourself to grab some jellopy. damn if i only new that this is needed in some quests i shouldn't sold it to npc.

If you need jellopy, go to umbala. there is a kid that exchange meat to jelo, fluff and clover.
But if you dont have those gears, warp clip, tele, osiris, kafra,,, it doesnt matter much. they only shorten your time consumed in ding these quest.
Good luck. I reall hate that thor part.

Now im planning to do geffenia access quest