Good find Bob, you are quite right to like that kit.
The reason the kit is worth a darn is because (from the article) "... It is made by Best Glide ASE for many government agencies law enforcement and military." The folks at Best Glide are top notch and don't sell junk.
No affiliation, just a satisfied customer. I'm a do-it-yourselfer when it comes to PSKs and I have obtained a number of good components from
Best Glide.