Planning to convert some of the new 40k to HH indomitus terminators (or run them as tartaros if the PDF is a dumpster fire)

Is there anything else I should do to 30k-ify them. My plan right now is to

>Scrape off the imperialis chest symbol
>replace the crux shoulder pads
>cover the primaris belt buck with a tabbard
>swap the storm bolters with combi-bolters


Ultramarines if it matters