I'm good with more tartan and maybe the small crest shown above (if desired/approved) on the breast or sleeve. Going that route, I'd opt for the tartan being at the top and fading out around the bottom edge.

Given that there is no other tartan cycling wear out there, I feel like the tartan is the "logo". That is what people are actually going to notice and that will spur the conversation about Where did you get it, Is it a group,...