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from Lowe's

Sterling Ensemble Shower Wall Surround Side Panel (Common: 2-in x 1.625-in; Actual: 72.5-in x 1.625-in x 1.625-in) 72205800-0

Sterling 1-5/8-in W x 35-1/4-in L x 72-1/2-in H White Shower Wall Surround Side Wall Panel

from Lowe's

Sterling Ensemble White Vikrell Shower Base (Common: 34-in W x 48-in L; Actual: 34-in W x 48-in L) 72121800-0

from Lowe's

American Standard Covina Chrome 1-Handle WaterSense Bathtub and Shower Faucet with Single Function Showerhead 9090.502.002

from Lowe's

Kwikset Dakota SmartKey Satin Nickel Single-Lock Keyed Entry Door Handleset 687DAXP 15 SMT CP

If you have a flat plain door like myself you could add some trim pieces creating the box on the door and some extra dimension, then give it a good paint!

Battic Door Energy Conservation Products 16 in. x 40 in. Rectangular Fireplace Plug-Rectangular Fireplace Plug BRK-FP-05-01 at The Home Depot