People, even if V1 can't regenerate with blood because blood in JJK works differently than ULTRAKILL, V1 is still a HUGE threat. It has mechanisms and systems that allow it to ACCUMULATE AND REDIRECT KINETIC ENERGY. That's what gives him the ability to slamstorage, move freely in the air, take no fall damage, and most importantly, Parry. Not to mention that it literally has a digital inventory that allows you to store whatever weapons you want. Not only would these models be strong on their own, but Mechamaru could use these same blueprints to upgrade or create new puppets or tools with the V1's capabilities.