So I thought of something technically if we think about it Dr.K when making the ranger suits made them all without a prototype design because the suits are literally the prototypes and that's what the rangers all use at least that what I feel like with the info we were given. So I came up with an idea Proto-Ranger operator series 0 the first design Dr.K made when designing the rpm gear. The suit is a mix between the regular suits and silver and golds suits essentially it carry that unique plate on the front of it with another much larger one on the back that carry's the operator number the helmet also has a snake theme being in the shape of one with fangs coming over the visor much like how the wild force rangers had. The suits color is grey with the mini tires on it being just like the base 3's. I thought of the design and I decided to base the symbol and overall theme off of the world serpent from norse mythology since the number would be a zero. So it has a snake head but it's eating it's own tail I am sorry if it kind of hard to imagine but I don't really know how to put it in to words well. Not only that but Proto-Ranger Series 0 had almost all of the rangers abilities in the suit as K discovered it was too much for one person to handle so she divided them up among 8 different operator suits. Not only that but Series 0 has access to all of the rangers weapons again being the prototype. The suit was first activated when a member of the organization who held Dr.K became the wielder of it's power when he led Dr.K to Corinth but due to the strain the suit's power put on his body he had to be put in cryo stasis. During that time his body actually began to adapt to the suits power and when K notices this she releases him when the rangers were dealing with a rather tough fight they might lose.

Some more details on operator series 0 is that K did not design a Zord for the suit so he has none. K also designed the suit to be a one man army hence why it has access to all of the rangers weapons and abilities. Again it is only due to special circumstances that operator series 0 is even able to wield that much power but that lack of a zord kind makes him come up short. The person who wields the power of Operator 0 wasn't like the members of the organization who held K he rather thought it was wrong but because he knew of it's existence his life was always at stake so he always tried to be their for K and make sure she felt loved but it wasn't enough as she still released the Venjix virus.

Some other notes: I haven't thought of a name and personality for the character who is lets call the Proto-Ranger officially but I am thinking of one.
This is also the first character idea I have publicly shared but I think it's a cool concept and would love some feedback on it.