Philco Predicta pedestal - restoration notes

[ViperZ]

Hi all, long-time member on AK (I guess that's why my registration date is back 14 years ago).. First post...

I picked up my "dream" vintage TV - Philco Predicta pedestal, 9L37 Run 4 chassis. The TV seems to have been barely used, judging by lack of any dust collection inside. The only "modification" was that someone tried to connect an external speaker in series with the existing speaker - I threw out that wire that was sticking out and resoldered speaker wire.

Nothing leaked out, nothing broken. TV powered up, had full bright picture after 30 seconds. I turned it off after a couple of minutes. So now going to remove the chassis for restoration. The plan is to replace capacitors (electrolytic and film/paper), couplets (ordered a kit from tvrestorerguy), and check resistors and tubes (replace as required).

I am planning to order two stacked capacitors from Hayseed Hamfest.

Could someone please confirm values of E1 stacked capacitor? I can see that E2 was bumped from 140uF/150V (service manual) to 150uF/200V (actual cap), which is a good thing in terms of voltage.
E3 matches the manual: 100/200, 10/450 and 200/25.
E1 according to service manual is: 140/300, 100/300, 20/300, 20/300.
300V seems too low, as the voltages indicated on those caps are 275V, so I was wondering if Philco bumped the voltage in the later runs like mine (Run 4). But I cannot see what is printed on the cap body without removing the chassis from the cabinet.

It takes a while for HH to build custom caps, so I want to order the replacement stacked caps before pulling the chassis.

Thank you.