Best set up for my JBLs?

Hi

First time poster here, but I don't think this will be my last.

I am in the process of rebuilding my basement, I have gutted it and am in the process of building a modest size dedicated HT, I'll be starting a thread about that later.

I have a bunch of JBL speakers some I have some I inherited. I have a question about which are best suited for what and weather there are some I should leave out of the mix completely.

I have at my disposal
2 x JBL N26 Front R/L
2 x JBL ES10 Rear R/L Surround
1 x JBL ES25C Center
2 x JBL Balcony Side R/L surround?
And I am looking for a Sub

Connected to a Yamaha HTR-6260

Any suggestions on altering the above setup?

The room size will be 12' x 25' approx.

I don't have a lot of cash to fool around with at the moment so I need to be as frugal as possible.

Thanks