To keep the costs of my funeral down here are some suggestions:

closed casket requires no preserving of corpse.
order casket and cover through Cosco on line
don't have funeral on a weekend or holiday
Bury me in a cemetray near where I die to save cost of transportation
Grave side funeral and dedication of the grave combined if weather permits

Have a good time; celebrate my life, don't spend all my cash (if there is any)