Creating a print ready file for digital printing

I need someone highly proficient in Procreate and Adobe Illustrator to help me create an artwork for a dress. I’ve designed a garment set which consists of a midi dress and an accompanying scarf. The scarf is a hand drawn digital illustration and has been done on procreate. The colour, artwork etc of this is final. The artwork of the dress now has to be created. The dress artwork has to be in such a format that it can be graded to various sizes XS, S, M etc. For garments it’s usually done on illustrator, I don’t believe this can be done on procreate? However, the dress artwork elements (in this case they are little hand drawn sea creatures) have to be drawn in procreate to ensure the brush strokes, drawing styles etc match the scarf, they cannot be done directly in illustrator. One option would be to draw the elements in procreate and import them individually into illustrator where the placement on the dress artwork can be done. However, I’m not sure if this will keep the clarity, resolution etc in tact. Thank you :)