Skimmer Replacement Parts

Hello - I recently purchased a SRO 5000EXT and was in the process of installing the system when I realized it would not work with my setup. As I am sure you know, the skimmer needs to be higher than the sumps that the return drains. Unfortunately, I did not realize this fact until I started the installation. I subsequently purchased a SRO3000SSS but I would like to return the SRO 5000EXT to the distributor for a refund of the original $650.00

I would like to return the skimmer to the distributor I purchased the skimmer from, but I would like to replace the modified parts before I send it back.

The parts I am looking for are:
1. The Gate valve
2. Pipe B
3. The Flange that connects Pipe A to the return port from the skimmer base.
4. The Flange that connects the Intake line to the body of the skimmer.
5. The small Standard-Metric Adapter.

I could see online that you have many of the items listed, but not all. Could you please advise if you carry them all.

Thanks,
Dave