Translating aran pattern from child to adult

I have an out of print aran baby cardigan from Nancy Marie Brown, which I made for my daughter over 20 yrs. ago. I would like to make the sweater for myself but have absolutely no idea how to translate this to an adult pattern. Is there anyone who could help me with this? Thanks!

The shaping may well be different so it’s tough to enlarge, but you could take an adult sized pattern and combine the pattern stitches into it. Use the patterns for the cable sts and put more sts between them in rev stockinette or moss stitch.