I managed to gut the old electrolytics. I think I can salvage the old tubes and some of the wax. The tar filled one was really nasty
Also, the new parts have arrived. I chose carbon comp. resistors to retain the original look. I couldn't find 0.03uF 6000v caps so went with 0.022uF. I think they'll be close enough.
I finally got a high wattage gun too. I hope it works well on chassis connections.