Great photos. R. Amazonica Iquitos / Red are what I'd like for my 55 gallon long (120x40x55cm). How big is the vivarium you say you have 5 in? I'd like 6-8 in mine.
I wanted to buy from Rana but they won't sell to private buyers (and there's no way I can make it to Hamm from the UK). HobbyZoo Anura will though - are they reputable enough? I have no experience of them.