I've spent a large part of my adult life dealing with rip blades and wood. While you can rip slivers, the waste that the blades hog out isn't what you want.

Something more like what you get from using crosscut chain for ripping will actually be pretty close. We've done a lot of chainsaw lumber-making here also. Uneconomic until you get to the unusual requests. 6"x12"x50' oak beam? No problem, assuming a decent tree. Those shavings compost nicely. Waste from rip blades, decidedly less so.

You certainly can stack blades, that's what gang-rippers are (old ones often available cheap). But with heavier bodied blades to prevent body deformation. Freud makes an excellent blade with 20-odd teeth, 10". You won't find anybody stocking it, generally only sold to gang-rippers. Don't remember the model number offhand, but I'll dig it out if anybody's interested. NOT HarborFreight priced, my last one cost $45.

Alternatively, if you can find somebody using a Lucas sawmill, they'd be delighted if you hauled off their rip chips. Or even more so, anybody still using a large diameter blade mill.

I've been backed up with unrelated projects, but intend to have a sitdown with my retired machinist buddy to see what he can come up with. Given the volume required, it would seem best to have something working the speed of a commercial chipper. So far, he's never failed to figure out how to build whatever I dream up. Not that he knows much about wood.

Those links to commercial heat producers tickled my fancy. Still thinking about that. Real interesting.

If/when we come up with something functional, I'll yell. We have a stockpile of commercial paper blades, 4' wide with a hardened edge, razor-sharp. I used a pair for a tractor bucket cutting edge. Pretty amazing to push up against a 2" sapling and shear it off.