you might try a layered approach.
regular (or armored) bicycle tire on the outside, with the qualities you prefer for grip/etc.
slime (or similar) antipuncture strip inside of that, centered in the tread, preferably wide enough to cover the entire tread (some strips are narrower than others).
smooth-tread (non-knobby; slick works best) tire with the bead cut off inside of that.
optionally your old (as thickskinned as possible) innertube(s) with the valve stem removed, and circumferentially slit along that inner side, slipped over your actual innertube that will be inflated.
it'll probably still be lighter than a motorcycle tire, fit the rim bead better, and be about as puncture resistant.
unfortunately, depending on where you're riding, there are some things you may run over that nothing short of a car or truck tire could stop, because of the thickness of their treads and the steel belts inside, which you won't find in any tire that's likely to fit on the bike (even if you built a wheel with a motorcycle rim on a hub that would fit your frame).
regarding kenda tires, every single one i've ever had, over many years, has had sidewal problems, or outright failures, regardless of pressure run in them, etc. i think they just use a crappy way of bonding them together. none of the other brands i've used ever came apart like that.
my favorite brand is cst, cheng shin tire. the 26"x2.5" cst city is what i use on the front of the trikes and the bike, with no flats yet (excepting a valve stem separation from a crappy tube). it has knobs on the edges and slick in the center; don't want the knobs but haven't found a better tire that's all slick. i use the layered approach as noted above in those, except i'm not using a tire inside it, just the old thick tubes slit inside and fit over the real tube, with the slime strip between tire and old tube.
i liked the cst "the general" tire even better, because it was completely slick/round , no knobs, and slightly more air volume, but can't find it anymore (it was stickier for better traction/steering/braking but it wore out faster because of that).
on the rear of sb cruiser, i use a shinko moped tire, but those are 20" bike / 16" moped rims, and there's no other perfect crossover like that, except some 26" bike tires fit some 21" motorcycle rims. you may be lucky enough to find something that does crossover; if so please post it up in the sticky index thread in i think ebike general that talks about tires.
unfortunately i don't know any motorcycle or moped tires that fit 27" rims.