There is a nice little current building (has been for the past few years) as guys start wanting to wear a nice blazer or sport coat with their kilts but don't want to wear the gauntlet cuffs and epaulets typically seen on Argyle, bramar and other traditional kilt coats.

Many, like myself, have taken a nice sport coat to a local alteration shop and had it modified into a kilt coat. Relatively inexpensive option considering actual kilt coats can run $300+.

To answer your question, I don't think standard suit coats look right with a kilt. They are too long and without the sporran and cutaway the front of the outfit is visually unbalanced and out of proportion. Again, this is just to my eye.

Howies kilt suits are one of my favorite outfits and if I had the coin, I'd definitely get one.

Considering how easy it is to find a nice jacket at a thrift store, or maybe there is already one in the closet not being worn, and take it to a tailor for modifications, having a nice semi-formal kilt coat is within everyones budget.

Even that coat that is juuuuuuuust a bit too small now can be modified into a kilt coat since typically you don't wear a kilt coat buttoned and they are supposed to be a bit more fitted. As long as it's not pulling across the shoulders it should look pretty good at a fraction of the cost.

If you have the means to buy new, check out Freedom Kilts and The Scottish Tartans Museum for these modern style coats.