Hello everyone. As stated in the title I'm a total noob of Warhammer, never ever played a game outside of Total War Warhammer II. I have though a good deal of old Warhammer Fantasy Battles Lizardmen models, inherited from a friend, and would like to use them in an Age of Sigmar Seraphon army, if possible. My collection consists of: 48 Skinks 32 Saurus Warriors 20 Temple Guards + 1 Temple Guard Captain (metal) 15 Saurus Warriors on Cold Ones (metal) 9 Chameleon Skinks (metal) 2 Salamander Hunting Pack (metal) 1 Stegadon (metal) Aside from those I've also bought a Start Collecting! Seraphon box, mainly for the Saurus Oldblood on Carnosaur. Now as said my question is, can I use this models for an AoS army? Do I need to convert anything aside from changing their bases from square to round ones? I can post some pictures of the various models if needed, so you can have a better idea of how they look. Thank you in advance for your time and answers.
Yes, you can. I doubt anyone would be against metal models. As long as their equipment matches weapons in battletome, it is fine. GW actively moves in the direction of "you can equip only stuff in the box", you don't need to convert anything to play.
As long as tournament orgs/opponents are fine with it. General rule for WYSIWYG is that your opponent cannot confuse your model with something else. I would be totally fine with bow skinks.