I can only vaguely see the back of the plane body G.S., but it looks like a small fillet in the corner between side & sole, which would indicate it's cast, not fabricated. That should make it a better plane, imo, due to the slightly lower friction of CI vs steel as D.W. mentioned. In any case, just keep a cake of paraffin wax by the bench; a few swipes over the sole every minute or so makes a huge difference to effort expended. After a bit it becomes such a habit, you don't notice you're doing it..
I've always worried about those "open" handles - despite the reinforcing screw they obviously won't stand a determined assault (but I suppose even "closed" handles can be busted if yu try hard enough). I notice the sharpish edge on the rear of the front bun of your plane. The Norris I had was even sharper, making it uncomfortable to use with my palm on top of the bun, which is my preferred grip.
D.W., bending the sides for a fabricated coffin-shaped plane isn't difficult at all. A very simple form does the trick:
The only difficulty is estimating the amount of spring-back, to allow for in the form. It's a very variable feast, depending on the alloy & how thick it is, & even the batch of material. In the pic. above, I used 380 brass which is a "hard' brass & very springy - the gap you see is the spring-back after fully clamping the form.
But you can always adjust the form & re-clamp 'til you get it close:
The closer the better as it makes scribing & fitting the D/Ts infinitely easier. The side in the form is for a tiny (~5 inch sole) plane and I think the smaller sides are tougher to get the bend right. Note too that at this stage I haven't cut the "scoop" out around the throat - this is to minimise the chance of the side kinking at the 'low' spot when the form is clamped.
I made that plane just to use up some scraps, not intending to keep it, but it turned out a really sweet little user (after some fiddling with the lever cap which I initially made a fraction too long at the toe end). I've found all sorts of uses for it, so it's staying with me for now...
I used to think the Stanley #1 was purely a toy, but now I'm not so sure....
Cheers,