Great work Louis!
I like the sheet metal CP.
About Lowes: They will cut a full sheet of MDF for you.
I usually get it cut into 2 half sheets.
The Lowes in BG does not have 1/2" MDF (Last time I checked Home Depot didnt either, Im glad they got some now).
I did find some 1/2" MDF at Lowes in Franklin, Ky, which is about the same distance for me.
Have you found any 5/8"? I searched online for about a 75 mile radius of Russellville and cant find any.
You'd think Nashville would have it but last time I checked no one (lowes, home depot) had any.