I am writing with the help of a translator - so the text may not be clear, sorry.
I found an old picture of my former Kuwahara Pacer in touring/cyclocross version.
If anyone is interested, it has Ultegra 6500 9s derailleurs with a Shimano STX rear derailleur and a Shimano 9s cassette - I don't know if all this equipment is compatible, but it worked for me.
The twin derailleurs on the handlebars are mounted pretty high up, because I've chosen a riding position where I always grip the handlebars with the top grip and never use the bottom grip. This is purely a matter of convenience, although some would consider it a lack of aesthetics.
The handlebar is an inexpensive handlebar from a road bike, which I bent a bit, i.e. flattened - after that the dip was not so deep - this made the new handlebar shape more comfortable, even though I don't ride in a lower grip ))
The seatpost and handlebar stem are made by UNO. Heavy, but overall normal quality components. The logo is painted over with matte paint.
Tires were Vittoria Pro XL 33mm, but the rear one died, so the photo temporarily shows very old continental grips.
Deore DX connecting rods with a big FSA 50t 110bcd sprocket.
Pedals are very cheap and simple
In general, as you can see - the bike is intentionally assembled on cheap but working components, because it is not an exhibition or museum piece, but a working specimen.
Thank you for your attention.