AW30-40LE oil change

Hi there

I want to change the oil in my AW30-40LE, the dealer wants 100$ for the filter..

1. Where can I get new filter for reasonable price (did a search and can't find it online..)?

2. What is the correct process for draining the oil? - here is what I think;

first drain the oil from pan, then take off the cover and replace the filter.

After that close the cover, open the return oil hose from the cooler and start the car.

Let the oil spill out while filling fresh oil until I see new oil coming out of the return hose.

Thanks!

Elad.