Thanks, I picked them up this afternoon so I see what you mean now...
So if I use one as a HLT I just really need to replace the tap (with the one mentioned above) and then perhaps fit a L-bend to the end so everything does not splash all over the place and so I can connect a pipe to it easily if I want to try fly sparging?
If the other is a boiler, again I need the tap and L-bend plus some sort of hop strainer, perhaps a stainless steel mesh pipe protector without the pipe type thing. Do I also need to create a false bottom to stop things getting burnt? The element seems to be concealed but i assume the bottom of the tank still gets pretty hot?