Talk about an ungawdly amount of $ to lay out for a lure! But the results do speak for themselves.
After watching some YouTube it looks to me like these are just fancy subsurface glide baits. Musky guys have used plugs with a similar action for quite a while.
So, what might do the trick without breaking the bank? Some ideas:
Rapala XRap Subwalk 15 - A subsurface walk the dog plug. 6" and 2oz..
Yo-Zuri Edge Trembler 125 - Similar to the Rap, but much thinner in shape. 5" and 1oz.
Search these on YT, and watch their actions. They may do the job at a much nicer price.