Recently, I've been looking for a 1800 map of Japan for a school project on it's politics. I have not however, been able to find one that includes the territorial claims of Daimyos or the land they control.
Unfortunately, most of the maps showing daimyo territories in the Edo period are based on the data from 1664. In 1664, Tokugawa Ietsuna conducted Kanbun Inchi, where he collected certificates of land ownership from all over the country, recorded them in a catalogue, and sent every owner a new document of certification in a standardized format. After that, no efforts are known to have been made to record all the territories of different daimyos at the same time, and that makes it so hard to make a comprehensive territory map in any year after 1664.
http://www.geocurrents.info/wp-content/uploads/2016/01/Daimyo-Territories-Japan-Map.png https://sites.fas.harvard.edu/~chgis/japan/images/daimyo_1664.gif http://earlgreyimperial.bufsiz.jp/edo_q/daimyou_haitizu.gif https://drive.google.com/uc?export=download&id=1N4KvIVES9MLJntI1AT8Zpk_-c5-ChQJn