Sonab OA-116 driver replacement?

[quadmatrix82]

Hi everyone, I just sourced some Sonab OA-116 but unfortunately the woofer and mid ranges on them are not original, it seems impossible to find the original peerless designs, can anyone recommend a good substitute?
The original bass woofer is 5.3ohms and the original mid range is 16 ohms - both model peerless sc-165. I have seen the hifit kit sonab replacements but the impedance doesn't match so appreciate anyone's suggestions here how to get past this.

Thankyou!

[carlzone]

Silver Flute w17rc38 in 4 ohms version seems to be nice replacement for the woofer.

For the mids, B65-oa II 8 ohms sold by HifiKit.se could be an alternative adding some resistance.

[quadmatrix82]

Thank you, If I was to source the Peerless sc-165 8 ohm version for the mid range instead of the original 16ohm version what adjustment would be required for the crossover?