I'd agree with the suggestions above from Plaz.
It is easy enough to source some 1084S parts. 4-5 years ago I replaced the failed line output transformer in my workshop test monitor with a new one from Ebay. The monitor gets a lot of use and the replacement part is still working perfectly. A quick note for anyone looking to replace a line output transformer, there's two main variants of the 1084S, you need to select the correct part:
https://www.ebay.com/itm/323271046225https://www.ebay.com/itm/323881872931The Commodore monitors are not significantly different to a CRT television, so providing you can find someone local familiar with repairing CRT TVs, then it's probably realistic to repair the 1084S.