I love the reset and I love the eternity band... but I'm thinking the wb is a bit wide as a stacker. I had the same plan when I had my ring reset - I'd use my original WB as a spacer in between my 1/2 eternity and the 3 stone, but my WB is just too wide that it looked off kilter on my hand. I had a 1mm RG twisted spacer made for me by DanielM and I had my DH gift it to me for our anniversary and he put it on! I know - stupid and mooshy! - but somehow I wanted that to be from him, if I was taking off my original WB! (Colour me loopy!!! )
Ordering a thin spacer may balance out the look, but it is weird to give up the WB - I hear ya on that one!