I've done 2 tops recently; one plastic window and one glass. If you take your time and use care with the plastic bits it can be a rewarding DIY job. One of the tops was a cheapie from Amazon, the other was from Auto Tops Direct I think. While there were quality differences with the materials, both fit well. The youtube videos mention in previous replies are very good. The biggest PIA for me was cleaning off all the old adhesive. Total time was about 7 hours at a slow pace for the first top and about 5 for the second. Could probably do the next one in 4 or so. Good luck!