Remember, when choosing a kilt that's it's very important to think about why you want it and where you will wear it. You can dress down a nicer kilt but it's rather hard to dress up a casual kilt. If you plan on wearing the kilt in more casual circumstances (parties, pubs, ball games, hiking) or don't know if you really want to make a kilt a part of your regular life in more formal or semi-formal circumstances, then a USA casual is the way to go. I started with a standard Sportkilt. If you plan on dressing it up for weddings, black tie affairs, etc. and know you will make a kilt a regular part of your wardrobe then I would save and buy a made to measure or start by buying an ex-rental/ex-hire kilt. That was my next step. Stillwater kilts also makes a nice starter wool kilt but the standard length may be too short for a guy your size.

All the best in your kilt search,
Hugh