One SportKilt is all the average guy should need. The cost of upgrades just makes it unreasonable. If you want to look respectable in public in a SK you have to buy the upgrades and the material they use just does not warrant that price. I own a SK and it is a perfect pajama kilt.

USA Kilts is the ticket for what you have described. Quality is top notch and if you want to step up to the Semi-Traditional in order to achieve the traditional look without the heat and weight, Rocky can set you up also.

One other to look at is Neokilt. I don't own one and have only seen pics on the forum but reports are that the service is great.

Stillwater kilts are very nice and a great deal but they do not fit the desire you described above since they are medium weight acrylic or wool depending on the model. You should however keep them in mind when you want to diversify your wardrobe