DV331AEW/XAA Samsung Front Loader - Drain pump & Spider Arm... is it worth it?

Hi! i have a 7 year old Samsung Front Loading Washer machine. Recently started having a lot of drainage issues... with the nd code coming on a lot. There has been a lot of sediment (almost looked like small rocks) in the filter... I spent time time cleaning what I could reach, including shaking the drain hose and ended up getting a TON (1 cup or more) of this sediment out... and now it drains ok, but the pump is loud.

I am assuming a couple things:

1) The pump is probably ready to be replaced 7 years in, particularly given that it was blocked up. I purchased a new pump motor and plan to replace.
2) The sediment, I assume is coming from a corroded spider arm.

QUESTION: If i'm already going to be taking the machine apart, should I just bite the bullet and do the work to put in a new spider arm assembly? IF SO, what else should I do while I am in there? Is all of this worth it??? I know that this repair, esp replacing the spider arm assembly, is not going to be easy or quick.

My thought is that for around $200 in parts, I could take care of the spider arm, the seal, the bearings, etc... and maybe i'm buying a few more years out of this machine??

Thoughts? Advice?

via DV331AEW/XAA Samsung Front Loader - Drain pump & Spider Arm... is it worth it?
by coloradodano