Can't find (cheap) PK-A lenses, hesitant about DA without aperture rings

Coming from a brief Nikon stint I'm happily continuing my Pentax DSRL sideshow though slightly derailed due to lens availability.

Apparently finding a pristine €25 kit with PK-A 50/2 and 200/4 at first was a fluke. There are basically no cheap PK-A, F or FA 28, 35, 100 or 135 to be found used or refurbished. I've followed the used market more or less weekly since last summer, missed out on a €100 Tamron SP 90 (AF) and a nice 28/2.8 and 50f/1.7 bag, only found a pancake €15 35-70 F.

Might as well give up on auto aperture convenience and look for M42 and Adaptall as well. My other sideshow is video so the nice DA primes without aperture rings are too exclusive for my budget as DSLR only glass (because plenty of AF EF-S on speedbooster options).

There might be some 3rd party auto A ones I've missed if they're in the https://www.pentaxforums.com/userreviews pool and somehow don't appear on https://www.pentaxforums.com/lenssearch.

Anyway, not a complaint, just a note :). If the K-50 keeps on giving I might get a FA prime later on as a treat but for now I'll just shuffle the bag and probably shoot mostly kit lenses. A refurbed €120 18-135 (WR) also lost out to a small sensor weatherproof action cam or Olympus TG-5 or 6.

Some local market links for the curious bargainistas:

Not all ebay.de sellers ship to my country and non-EU ones means 25% VAT plus fees - https://picclick.de/Foto-Camcorder/Objektive-Filter/Objektive/?q=pentax-a

https://kamerastore.com/collections/pentax-k?pf_t_category=Category-Lenses&pf_t_item_condition=QC-Passed&pf_t_item_condition=QC-Certified&pf_t_item_condition=QC-Restored&sort=price-ascending

https://kamerastore.com/collections/slr-dslr-lenses?pf_t_item_condition=QC-Certified&pf_t_item_condition=QC-Passed&pf_t_system=System-M42&pf_t_system=System-Tamron%20Adaptall&pf_t_system=System-Pentax%20K&pf_v_brand=Tamron&sort=price-ascending

https://www.tradera.com/da/search?q=Pentax&categoryId=14