Exactly my plan!* when trying to match the "layens top bar dimensions" (1.5" width to be sure) be aware that bees will try to double-comb on you if running them foundation-less;
if/when I get around to do my next batch of the frames, I will build them with
a)pass-through top bars at 1 inch wide and will be using a cover cloth from burlap and/or plastic
b)will make them to self-space to 1.25" by default (they always go a tad wider due to propolis build-up/wax build-up anyway; yes, yes, one should scrape the frame sides and blah, blah... - well, practically speaking that does not get done often enough)
I'm going with thinner top bars (anywhere from 1 1/4 inches to 3/4 inch wide) instead of the inch and a half.
Going to use cover cloths to form the ceiling (actually a lot like the guy in the video you recently shared: https://youtu.be/Rlq3n2cJKBk?t=91 ).
and I'm thinking about putting some sort of self-spacing block on them somewhere, either screws, bits of dowel, small piece of wood, etc.
The things you can do with top bars that don't touch definitely outweighed the perks of having touching top bars to me, especially since you can just roll the corner back on a cover cloth to do a quick check and still not disturb the rest of the hive.