You would be lucky to find anyone else who is even aware of the Audiofrog brand let alone having made fibreglass pods for them.

Whilst I know a fait bit about audio I have not heard of AudioFrog...always something to learn!!

I use his products myself for my Hybrid Audio Technologies L1 Pro tweeters:

HAT's I am more familiar with - and that is an excellent choice of tweeter mate! - however to the point I've seen that dude and thought his stuff looked pretty hokey and not that cheap...interested in how you feel it sounds...?

Personally I was going to fibreglass some a pillars for mid range and tweeter...going to fork out a fair bit as well