Build it from plywood with front sliding glass doors and about 4ft L x 2ft W x 1.5ft T .
If you look on Ebay you can find timber reptile tanks that are sold as flat packs and you simply assemble and fit the UVB tube and reflector hood and e27 ceramic light fitting and a domestic indoor/outdoor par38 or equiv colorless incandescent or halogen spot globe for the basking globe/ daytime heat source.
A 100L to 150L tote can easily be converted to a temporary reptile tank in a hour or so , all you need are a drill driver, some self tapping screws , an electric soldering iron and some off cuts of mdf or plywood to mount the spot globe , or if you choose to leave the lid off , a ceramic clamp lamp with reflector dome or a Komodo lampstand + a ceramic lamp fitting with a reflector dome and you are in action.
This is how I set up my rearing tubs for skinks (started off my two big eastern bluetongues in these as babies / juveniles) , then my beardies as hatchlings and juveniles used them. See linky :
https://www.beardeddragon.org/forums/vi ... 4&t=233480I'm still using them (but for storage only now.
I now house my adult water skink in a 120L ALL SET converted (to rearing) tub , rigged up two new 120L tubs to replace the two 100L tubs as I was planning on buying a pair of new shingleback skinks or rankins or netted dragons soon as babies to rear.
This is the size of two new tubs I bought recently :
https://www.bunnings.com.au/all-set-149 ... d_p2583377W:575mm H:480mm L:790mm , for a 149L ALL SET brand tub.
My old rearing tubs are Home GAllery 100L Tuff Tubs and were in service for 7 years before the UV exposure finally made the sides brittle. I replaced these with
https://www.bunnings.com.au/all-set-120 ... r_p2583852. Which gave a wider tub by about 4 inches which my skink appreciates.
These are very good as they hold the heat in nicely , are tough and durable and see through and stackable if you are cleavour in how you mount the UV and basking lights.