Power Distributors: Shunyata Delta-X, AudioQuest Niagara 5000, and PS Audio PowerPlant 12

Decided to start a new thread that accurately reflects my current thoughts.

We moved and the house has some electrical issues. An electrician is addressing them for use. One issue is a wide voltage swing identified by my 20 year old Panamax 5300 (98-145 volts). Wide swings happen in this area but normally between 100-140 volts. The electrician is work with the utility company to minimize this on our property. He is also installing a dedicated 20A line for the stereo system.

I have already ordered a Furman P-2400 AR (recommended by Furman) to help protect the system from wide voltage swings. The Panamax is ready for retirement.

I plan to install a power conditioner/distributor that will utilize the protection the Furman provides. I will probably run my XA-25, one sub, and maybe both Acoustat 1+1 speakers directly through the Furman. The conditioner/distributor will handle everything else.

The three models listed in the title are my short list. The Delta-X with an Shunyata Alpha-X XC cord runs $6000 for The Cable Company. The Delta-X is $4500 without any cable, and the Alpha-X MSRP is $2800. This will be my most expensive cable if this is selected. The Niagara 5000 is $6900 ($3999 from TMR with stock cable). The PowerPlant 12 is $5999 (approx $4000 with Panamax trade from PS Audio and approximately $3000 used from TMR with stock cable).

So here is the apples to apples choice: Delta-X at $4500, Niagara 5000 at $4000, and PowerPlant 12 at $3000. What are your concerns and recommendations?

If I go with the Delta-X, do I need, or want, the Alpha-X XC?