Unless you're a kilt maker, I don't think you should attempt the resizing you suggest. You might just want to find another kilt, and we can make some very good suggestions as to where.

I don't know what shipping would cost, but you can get a very heavy Gordon like McMurdo's (and mine) at What Price Glory for a very good price. It's heavier than anything you're likely to find elsewhere.

Check this out: http://onlinemilitaria.net/shopexd.asp?id=1702&bc=no

$195 US is a very good price on a very useful kilt.