Sorry Shawn.
I haven't had a chance to try Joe back. With regards to using Noble and a traditional liner I might suggest you email Eric @ Noble and check with the head tech himself.
I have always build my steamers with a full topical water/vapour barrier approach so I have no first hand experience with a hybrid method.
Eric Edelmayer <eric@noblecompany.com> If he dosen't know then no one will.
Send Eric a link to this thread so he can see your pictures.
For what it's worth I might scrap the liner and go all Noble Seal TS. This will save you the trouble of wire lathing and mudding the bench. If that doesn't sounding appealing then email Michael Getzlaf <canadian.mosaic@shaw.ca> from Laticrete and he can help walk you through a Laticrete install.
We are starting up a new steam project on Davie and Beach in a couple weeks. Full Thermasol Steam shower kit with sound and chromotherapy lighting!!! Just got the call today.
"The Steam is Dream!"
JW