Thank you! Another higher quality recording exists, that I've only seen in Chinese fansubs. Hope that one resurfaces too.

You're welcome, IIRC I downloaded it back in 2015 from aumi, it's now gone alas just like lot of other great anime DDL sites :/ as well as there is 名探偵コナン的京都旅 https://www.nicovideo.jp/watch/sm12636809 https://www.nicovideo.jp/watch/sm12644993 Crossroads of ancient capital special

and at first glance it seems to be different one compared to one you linked on Conan bonus page

It's included in my torrent, under VHS > OVA 03 + M07 Promo 2

Wonder how I missed that. Thanks