Hello and welcome to the forum!
I agree that space is big enough to hold multiple species if done correctly. My suggestion would be to do some research on multispecies vivariums and see what animals would work together (regarding aggression, humidity, heating and etc) and then house those animals separately for a time so that you gain experience with that specific specie in order to understand what normal behavior is. That way if they are stressed when moved into a mixed tank, you'd be able to figure it out easier so that they do not get ill. Mixed species is not something that you can easily just dive into even if you have a large tank space. Plus, all animals need to be quarantined and/or treated for any parasites they may carry which would infect another animal. A parasite that may not affect one specie could devastate the other.