And what would be the point of doing that? To get 3 brand new Nichicons in the unit? Looking back... I'm almost glad those Nichicons leaked! That was a good kick in the but and a perfect wake-up call.
I understand but it is quite odd imho to buy a brand new preamp and then decide the only way one can live with it is to mod it. Unless I didn’t understand you and you acquired it used a great price.
Anyway - of course you are entitled to do what you wish but personally I would have wanted a refund and then bought a different preamp altogether.
Anyway. Looking forward to reading about how it sounds.