I am a journeyman glazier who did glass work for 11 years.
You could probably have a local glass shop fab one for you.
Of course it will have to be tempered safety glass and will be custom size.
Post pics and I can give you some professional advice.
2001 1500 4x4 Off Road Edition Quad Cab, 5.9 V-8
4.10 diff, Tow Package, Primus Brake Controller
EAZ-LIFT Weight Dist hitch with friction sway control
2007 Jayco Jayfeather 29A