I have made large prints on a regular basis. Using up to 142cm wide paper up to a length of about 210cm. Some oother 100cm x 270cm. Although I don't enjoy doing it. A lot of work and it takes a long time with testing and all that.
Recently I did a negative for someone where the exposure was 45 min. needing dodging all the time.
Now the bugger wants to make prints using liqued elmulsion. From a 8x10 inch negative enlarged in three stripes where every stripe is 2x3m resulting in a picture 3x6 meters.
I have no idea how I am supposed to do that.