Looking for boy' Christening Romper pattern

I want to make a Christening Romper for my grandson. I will be using a knitting machine for some of the flat knitting, and finishing the rest by hand. I want to use fine yarn to get a gauge of 7-8 stitches per inch. I have attached a picture of the style I am looking for that my daughter found on the web. I just need a basic pattern in the same shape in a 12 month size I will be doing my own combination of stitches.

You need to join Ravelry (it’s free) to see this one, but it’s similar.