Walther, as mentioned, Remington also made a .22LR match, but kinda light iirc, as did Diana with model 800? But VERY rare! See one occasionally on egun. Also, there are the russians, Vostok etc. Our best ex-match shooter shot a Vostok. Regularly shot 600 ex 600 during training (kneeling, 12m). There probably are other eastern rifles too.
But if you like anschutz, I'd stick with it. The 1807 is indeed adjustable, cheekpiece, with pads only. You'd need a younger 1 for more adjustability.
You can alays add weight to yr barrel, but you cant remove it.
Maybe just look for a 19xx sechand stock on egun??