Xzel, sounds like you enjoy my mod and agree with my ideas of how the melee combat in the game should be, and for that I am very thankful. Later on you can get the Ripper or a Super Cattle prod, so there shouldn't be a lack of melee weapons for you as a one-hander. Sadly, there isn't any way to make a weapon one/twohanded without rewriting large parts of the engine and perks. There also aren't any ways of making a weapon do different damage based on attack mode, or I'd give all grenades a Punch option like the Rock has.
Now, I don't want to go about dictating people how to play their game, so for you, Dudejo, I've made some special one-handed spears. Click
here to download them, put them in your data/proto/items folder, and everyone should be happy!
EDIT:
I've got some ideas for another (and perhaps finally final) version of the mod, going to throw them out here and hear what people think:
Should Gauss ammo do less brute damage because of the bullets' low mass, but have a lot more armor piercing because of their high velocity?
Should the weapon prices be reconsidered?
Should AP ammo just simply do more damage than JHP all over, perhaps with an increased price tag?