1/4" thick blade for plane, shave, etc?

So, I have some discarded lawnmower blades that I’m looking to cut up for use in homemade tools. Now, these are no ordinary little push-mower blades, these clearly came from something heavy duty, as the steel is 1/4” thick, maybe more.

Is that too thick for a plane blade? I was thinking of using it for a Krenov-style scrub plane. (I’m also considering a drawknife, but I think the thickness is just fine in that application.)

Follow-on question… would an angle grinder with a carbide cut-off wheel be enough to cut this stuff up? I gave it an obligatory attempt with a hacksaw, but that is clearly a losing proposition… I’d be running through a ridiculous number of blades.

Thanks!
-Rob

-- Rob "Scrape" French, Missouri