Sygo

It's possible to kill them there without the slayer helmet, unless it's been changed.. The smoke damage from the dungeon can't KO you. So set up your cannon and mage pray. You will be brought to 1 HP. Make sure you don't run out of prayer or you will die from a mage attack.

Use your bunyip while you are training and need healing. It's very helpful for Slayer should you chose to train that. Youre stranger plants will sell on the GE. At one point they alched for more than the cost of the pouch and the nature rune. So you migh want to try that. When I made barker toads I always alched them. I used nature runes I got from drops to alch them so I didn't have to buy any. As it's been said you could also use them as junk to buy more shards or use them as junk to lend something out if you have anything that can be lended for decent amounts.

For the record the Dragon Claws are completely horrible at Bandos. I tested that when they first came out. At max stats with super sets and piety I only managed one decent special after 5 hours there. Granted that spec was 40-20-10-11. They aren't worth taking at all. Personally I prefer godswords there, but a whip plus rune defender is also good and you could take the Dragon Halberd there for the special attack. I've seen it done many times.