Abruce
To replace all 8 Caps it will cost about $700.
The original Philips filer caps can be replaced with USA made Cornell Dubilier with higher capacitance with 125V surge. Also the original Philips 1900uF/150V small regulator caps can be replaced with Cornell Dubilier cap at 1900uF/250V. These caps are special ordered from factory.
I have these caps. You can send the amp to me i will repair it. But the problem the amp total weight is over 150 pounds. Very expensive to ship. Your best choice is to have a local tech replace the caps to keep the expenses very low.