One piece windows for 67-72

[SlayeR]

New to the forum, so if I have posted in the wrong area I apologize. I have looked at the one piece window conversion kits and have read through the forums at the good\bad experiences with them.

Here is the question that I have and I am sure someone has attempted it and maybe even succeeded. Who has tried to build their own one piece kits and what are the hurdles\successes you had doing it.

Thanks to everyone that post on here. I have found stuff dating way back that has helped me with my 68 GMC!