basic leopard tortoise questions

I have a leopard tortoise. he/she is a little over a year old. now there are reptile shows coming upp in my area in September, and I plan to get another hatchling leopard or a African spurred. so question 1. can I mix a hatchling with a slightly larger tortoise? can I mix African spurred? I know not to mix but they are so similar that I thought it may be ok. and I am keeping my current leopard in a wooden cage. when should I move he/she outside?

I dont see any real issue keeping them together so long as they are the same size. Also keep in mind males will eventually fight, I think mixing between an african spurred with leopards, zoo's have been doing that for years. I wouldnt recommend keeping hatchlings outside until they reach 1 year of age.

You should quarantine any new animals prior to introducing them to your current ones. After a quarantine, two leopards should be able to live together. I would not mix a sulcata with a leopard, sulcata are more aggressive and your leopard will suffer, at least from stress, at worst a fatal wound.