Sounds very interesting
I very nearly put my hand in my pocket to buy one at Exeter show last year.
Seen some quite good results from those once you get the ideal baking temp right
I worked for a large industrial machinery manufacturer a few years back, they had a fantastic powder coat line running.
If the part to be powder coated was prepared correctly you can achieve a very durable finish indeed
Powder coated a huge range of things for my boats ( Above the waterline ) & everything I did stood up to marine life very well.
If I remember correctly, the Exeter show price for those kits was £125 on the day .