Not knowing your exact measurements I can not give you the exact parts you would need.
However I can tell you the Better Bath RV Shower Surround - 45-7/8" Wide x 23-3/4" Deep x 62" Tall - White
# LC3210398 paired with the Better Bath RV Shower Pan - Right Hand Drain - 46-1/4" Long x 24-1/4" Wide - White # LC210383 will give you a nice looking set up. view full answer...