Thanks for all the kind word!
I predrilled all the holes. The XPVC was super easy to work with.
I am into the rack $85 for the 1/2" sheet of XPVC, $6 for a box of 100 screws, $5 for three two packs of generic super glue, $40 for 20 feet of 4" Flexwatt (I have extra but wanted it that way), and $80 on the tub configuration I have. The grand total is $216!
Regards,
B