@vair68robert - Actually, your comment made me go back and check how watts and thermals work on resistors. Appreciate that, and felt it was something I missed. Thankfully Tom was able to chime in. Secondly, I did pick up Mundorf 100uf electrolytic capacitors since they were on sale, but was before your suggestion to check the sizes. There is a noticeable size difference and not sure they will fit properly on the original PCB. It's likely a throwaway effort if the end result is going film capacitors.
Didn't have much luck finding a CS2.7 crossover photo just to see the layout and the 1uf capacitors. I also remember the same folks in this topic mentioning the higher voltage was better. Someone, and can't remember who, had 2xx volt capacitors and didn't mind them. Very curious to hear what voltage you go with and ultimately what you think of the Purity capacitors sound .
jafant - You asked earlier about the sound after doing the SE capacitor update. Instantly, it was clearer and continued to get better since break-in. T-Bone Burnett, Allison Krauss and Robert Plant's album Raising Sand, track 7 "Trampling Rose" has kicked my system in the backside along the way. When her voice goes high, I have heard it muddied and seemly off tone. When switching to Neotech OCC interconnects, it finally cleared up enough at the very top notes and with the SE kit, the vibrato could finally be heard as clear as day. Since there was a lot of discussion around amps earlier, I am using a Classe CA-2200 with some older Audioquest Midnight II cables. Cables will be updated either during or after this project.