aim,
get into you aunts whites asap. You can always resell the ones you have to other students. Trust me. you will have an opportunity. Other students will ruin uniforms right off the bat.
Loose fitting is alright for a nice air cushion. Baggy or really loose becimes dangerous. Use this excuse to post these on a school board.
I you can't get the right ones now then I would suggest that the sleeves would be the danger around mixers,as laprise says, hot oil and such. Garter them if you have to.
It's got to be annoying if you don't feel good in your whites. Also, yellow pages, find a tailor that will do them as you wait. If there is a Mens Warehouse in your area, they usually have a good tailer on hand and they are affiliated with the ACF(I think), they will take care of you. I say affiliated, because when we get our new cards each year, I believe there is a 10% discount from them.
Pan