Need some advise on what to wear with my new kilt.

Going to a wedding reception in a couple of weeks for my cousin who was just married out of state (As long as her fiancee' recived his visa).
There has been some debate in our house of just how to dress for this Kilted affair.
My Dad will be wearing our clan dress tartan with a Prince Charlie.
I however, only have Kilt,belt,hose, sporran, and flashes. So my questions are:
Is it ok to wear a sport jacket with Kilt?
My hose are cream, is it ok to wear a white shirt?
For my tie, I do have a matching tartan neck tie, but I have heard this is a no-no and I should wear a solid color tie that matches my choice of color in our tartan. Is this correct?
Thanks for the help!