Well, I have some pics to upload, not overly interesting atm, and I cant find my proper camera so they are from my phone:

Siliconed all of the holes shut, and any gaps i could see around the background


Covered the pvc drainage pipe in silicone and stuck fine coco substrate to it


Put the pipe roughly in place and put in the hydroleca



Roughly cut the weed control mat to size - couldnt get hold of fiberglass mesh, but this should do (obviously no rigidity, which could be a pain, but at least it is permeable)


Trimmed the mat to fit down the sides etc.


I'm just working out the best way to hold the pipe in place at the moment, I want a gap at the top as I'm planning to hold some weed mat over the top with an elastic band to prevent bugs.
I might just use some wire to hold it to the background so it wont fall over and hurt my froggies.

I called the reptile shop where i found the tincs and they still have them - they are not sure of the gender, but says they have had them for a while and they havent started fighting. Will pop through in the next couple of days and see if i can sex them - larger females and larger toe-pads for males are the easiest ways as far as i have read.