It's glass, my carpentry skills are, well, I knocked down a wall and made a new room the size of a bathroom for washing clothes from scratch, and made a metal sheet roof for my cars, are those enough skills?
How custom do you want? A stand for this size thank (assuming 48x12 inches) is relatively inexpensive whether it is metal or wood? I have a Brooklyn series from Petco for my 55, and it is a very nice strong stand that can be had for around $70 when you watch the sales.
If you were a master carpenter, you wouldn't be asking this question. Just remember time is money too.