The K31 is an excellent rifle for the reasons you stated. Unfortunately prices for the rifles and ammunition are rising because they are so good.
Welcome here Mark. When you get a chance, please head over to the New Member Introduction forum and introduce yourself to the folks.
If ye love wealth better than liberty, the tranquility of servitude better than the animating contest of freedom, go home from us in peace. We ask not your counsels or arms. Crouch down and lick the hands which feed you. May your chains set lightly upon you, and may posterity forget that ye were our countrymen. ― Samuel Adams