Advice for Vicki?

Vicki has had a super productive Easter weekend working on her quilt that she bought fabric for last week and has cut out and sewn up 100 half square triangles. Now I can share with you her planned layout. She is going to have 5 zigzags each in a different colour going across the bed:

Around this panel she wants to have a thin border of a colour/print and then a wide border of plain white to bring the quilt to queen size (the zig-zag panel is about 1.5m across I think)

She now has some important decisions to make (which might affect each other). The first is what order to put the zigzags in, and the second is what colour to make the coloured border.

(just to remind you what the fabrics look like with slightly more colour accuracy)

So what would you do? What order would you put the colours and what kind of coloured border would you use?