Herceptin plus tykerb after kadcyla

[Rupali]

Dear All
I am thinking out loud here and want to hear from all of you
Or want you to pose this question to your oncologists as I live in India and the oncologist in the USA are much more experienced and updated.
I am taking kadcyla right now out of my pocket and will somehow manage 6 cycles after stretching our finances as kadcyla is damn expensive.
We went for it as my cancer was pretty advanced MS has spread big time to bones, spine, lung, liver and brain they said were numerous small skeletal masses.
The intent is that we take 6 cycles of kadcyla and hope it kills all the cells and then in maintenance we go for a monthly herceptin and maybe tykerb.
This might sound unique but that's why I am posting here to listen to your thoughts or if you can help post this to your onc on my behalf and see what he feels.
Would be obliged to hear from all of you