First time post this this part of the ST boards, so thanks in advance for having me by...

I've finally convinced my super talented wife to take up triathlon and have been fitting her out with gear.

Some background:

She's 5'9", approx 123lbs, so tall and skinny with a small chest.
She was a competitive swimmer through college and has a super efficient classic style stroke and she can move in the water!
She's cold all the time and since I'm partial to full suits, I'm going to push to get her comfortable in a full sleeve suit.

Looking at all the sizing charts, it's hard to figure out what will fit her long thin frame. Maybe and Xterra Medium-Long? Our local tri shop said to focus more on the height guides than the weight, but that worries me.

As an aside, we are obviously in the market for something, so if you have similar dimensions and have something to sell, please PM me.

Thanks,
Jason