Waistcoat style

[ghostlight]

You might also look at some of the waistcoats offered by vendors who cater to the Cowboy Action Shooting crowd.

Wahmaker makes a few historically inspired waistcoats in this style.

[wvpiper]

where should the bottom of the waistcoat be?

courtesy of the Wizard from another thread:
The bottom of the two points of the Waistcoat should be at the bottom of where the Belt Buckle would have been. Or just below the Top Straps of the Kilt.
This assumes of course that you are wearing your Kilt with the waist at the correct Traditional Height. (The Top Straps of the Kilt should be just under the ribcage at the side and at about the level of the Kidneys.)

The bottom of the Argyle style Jacket should be at or just slightly above the bottom of the Fell of the Kilt. Or just at the widest part of the Hips and Butt.

[M. A. C. Newsome]

Good sources for waistcoats:

http://www.ushist.com/victorian_mens_clothing.htm

http://www.gentlemansemporium.com/store/vests.php

http://jas-townsend.com/index.php?cPath=1_4

I've made purchases from all three of the above companies at various times and been very pleased with their products and service.