At the risk of sounding like an elitist (which I'm not) I would advise you to bite the bullet and buy a good wool kilt. You already know the wearing of a kilt since you have multiple sportkilts. Get a really good kilt even if it costs you $500 or more, in the long run you'll save money. I know this for a fact. I have several kilts that I bought because they were "more affordable". I don't like them and rarely ever wear them. I wasted enough money to pay for a wool kilt in the process. There are some really good alternative kilts out there, I love my USA kilts, my Bearkilt, my Stillwater kilt, and my Utilikilts. Each of them is a great garment but none of them are a "substitute" for my formal wool kilt.

Jamie