Propane Tank Forge Build: DIY using KAOWOOL, Refractory, Rigidizer

This is my first attempt at building a forge. I used Will Matthew's excellent video    • Building a Blacksmithing Gas Bottle Propan...   as a guide along with the iforgeiron.com forum. https://www.iforgeiron.com/topic/6128... If you have a question, just search the question and add iforgeiron.com and you will most likely find your answer.
Warning: This is a complicated build and there can be many hazards. Please understand the proper use of PPE and MSDS to avoid injury or death. The chemicals used in this project can cause permanent damage.

Burner:
(found most stuff at Home Depot, 1/8 ordered on amazon, do not use galvanized parts)
1 1/2” x 3/4” bell reducer x 2
1” x 3/4” bell reducer stainless steel x 2
6” x 3/4” pipe nipple x 2
4” x 1/8” pipe nipple x 3
1/8” tee
1/8” 90 deg elbow
4” x 2” pipe nipple
0.6mm (0.025”) mig welding tip x 2
1/4” x 1/8” nipple
1/4” female/female ball valve
1/4” male to 3/8” male flare fitting/adapter
0-60 PSI adjustable pressure gauge
1/4” male thread
1/4” tee
1/4” x 1/4” nipple

Materials:
Refractory Cement Casolite 30 (Kiln supply store) 3 oz. to 1 lb
Kiln Shelf (kiln supply store)
KAO WOOL (fireplace store)
High temp spray paint (fireplace store)
Rigidizer= System 3 silica thickener 1 cup, 1 pint of water, blue dye