Found a new site http://otherworldminiatures.co.uk for Lizardmen conversions http://otherworldminiatures.co.uk/shop/product-category/dungeon-monsters/ Hmmm.... 32mm Troglodytes might make for a good Kroxigor substitute.... also... http://otherworldminiatures.co.uk/shop/wilderness-encounters/we12b-lesser-boglings-ii-3/ seems skink like http://otherworldminiatures.co.uk/shop/wilderness-encounters/we4a-giant-lizard-i/ Hmmm these could make decent salamanders http://otherworldminiatures.co.uk/shop/wilderness-encounters/we5a-lizardman-warriors-i-2/ ohhh Lizardmen warriors now we are talking
You should also check out this site, there are less for lizardmen conversion but the models are great http://www.dragonbloodminis.com/cavalcade/Dragonblood_Draconid_Legion.html
32mm is a good SAURUS size (remember, a normal human is 27mm). however, the price would frighten me away from using them as sauruses