When making the https://www.thingiverse.com/thing:2492121 ABSDBS 8" dobsonian telescope, I made some adjustments to accommodate for a mirror set that is commercially available in Germany:
Main Mirror: https://www.teleskop-express.de/shop/product_info.php/info/p10269_TS-Optics-200-mm--8---Newton-Hauptspiegel-f-5-aus-Quarzglas.html
Secondary Mirror: https://www.teleskop-express.de/shop/product_info.php/info/p1667_TS-Optics-Newton-Fangspiegel-elliptisch---D-63-mm-kleine-Achse.html

When using this kind of Main Mirror, just replace the "mirror-cell-leg" from original ABSDBS with this design and you are all set.