I am sorry but the threads are not standard threads so you probably will not find stuff to couple hose threads easily. As you would probably know the first model had standard BSPP threads on them. The issues with the BSP thread form is that it's not designed for plastic. You can get away with it sometimes especially on small diameters but for the larger diameters they can easily jam up. This is one of the issues that some customers found with the first model and they would jam the threads so hard they would not be able to take the fermenter apart for cleaning. With the large diameter opening at the top and bottom we had to be very careful to avoid this, so in this design we have specifically made the diameter of the threads suit plastic by using a much chunkier thread that doesn't bind when it's done up tight as much.
The current plastic butterfly valve is a really high quality valve made from fairly expensive plastic that are thick and/or over-moulded over stainless steel. None of the threads have been designed to come in contact with the beer. Also bottom dump valve, collection container and lid can all handle boiling wort. It's just the tank itself at the moment that can't handle the boiling temperatures. So if it's temperature tolerance you are after the change to stainless steel dump valve would not actually be necessary.
The current stand is already quite compact only allowing a couple spare cm below the collection container clearance. We do have a custom made fermenting fridge that will take both the FermZilla 27L
and these hopefully will not be too much longer for us to complete and this will have heating and cooling built into the unit. If you really wanted a more compact fermenter we have two other models without the dump valve and collection container. One of them will take 2.5bar pressure and the other model will have almost flat bottom and only take 0.3-0.4bar. These both will be quite a bit cheaper than the FermZilla. So perhaps these other two fermenter shapes might suit you better than the conical shape