I have a "pure" t-hunter tamer since the 7xGM days. The only difference now is the additional 10 in taming and lore after the introduction of Power Scrolls, and more pets to mess with.
My template:
110 Taming
110 Lore
100 Vet
100 Magery
100 Meditation
100 Cartography
100 Lockpicking
Accessories used to bump Taming/Lore/Vet for max stable slots (scrolled to 120).
If your Greater Dragon is decent you should be able to handle anything ONE-ON-ONE up to level 6. For anything up to level 5 a mare and a dragon/white wyrm will do. Just make sure you don't try to take on 4 Ancient Wyrms at a time. It might take some time for the initial spawn but there shouldn't be any problems afterwards.
If you're not comfortable with commanding pets (which I think 110/110 is quite enough) try equipping the Birds Talisman from the Library Collection, and that should take your skills to 115/115.
To be frank I don't think you'll be sacrificing much power if your pets are good. You might not have the ability to discord/dump spells/arrows on the monsters and therefore lose a few seconds in killing them, or the ability to peace/provoke to bail yourself out of a nasty situation, but really, you just need to know when to fight and when to run, and as long as you don't go gung-ho on anything without first assessing the situation you'll be fine.