Just a thought, and you may already know this, but If your planning on using one on a deluxe, then depending on the steady rest, You may need a riser simular to what the tailstock has under It also, in order to get It up to the center height needed, because the deluxe is not stock taig height. Possible Your planning on switching one You already have out, but If not, You may want to talk to Chris about Your plans, He hooked Me up with some risers for another project of My own one time, and May have what you need. I believe he is a dealer for taig also, and if I'm not buying used or off the secondary market, therefore having to buy new anyway, then I go through him first to see If he can get what I need. I'd rather give My dollars to him, then some other dealer that I don't know. I have a double width riser on My tailstock that has 2 thumb screws, that's the risers I needed for My project, but My small steady rest has a single riser with only one thumb screw, and that may work for what you need. If you have one On your small steady then You could switch them out, but you may be suprised By the low cost of just buying a new one.
That's made for sherline lathes, and not for the taig as far as I know, so I don't know if that would work without a custom bracket made to mount It on a taig. I really don't know for sure, but you would probably have to make modifications to get it to work on the taig. The only sherline product I've owned was a indexing unit with bed and tailstock, and that had a much smaller bed way then the taig lathes have. The link that Waldo put up is the taig steady version that I know of other then Chris's steady rests, and I don't know if taig makes one that's open on one side or in the "c" shape like the sherline is. It does mention on that page you linked to that the steady rest only works on sherline lathes, so I'm guesssing you would have to make a custom adapter to use It on Your deluxe.