If you can't manage to come out of fear then perhaps you should try to smoke it at breakthrough dose. It will last shorter so if things go wrong then you won't be there for long.
Otherwise, try a lower dose orally and find out how to get comfortable. Even microdose for a while
I doubt spending all that money traveling to peru will actually change much. This is the molecule DMT and it is the same molecule that is found in peru too, so what's different? However there are aspects like being with other people that may change things and if you believe in "spirits" or "god" then perhaps a shaman may change things, although that can't be proven yet...
Also, it may be that you enjoy smoking because it is purer chemically than drinking ayahuasca. If you took pure freebase DMT and pure harmalas orally then it will make for a clearer trip.
Personally I have found unpleasant feelings with the oral route. It makes me feel weird and not very happy. Now I use an e-cig pen to maintain the trip where I want it for longer trips.
Another thing to consider is that if you can't handle ayahuasca now? Do you really think you will handle it in another country? in the middle of a jungle with random people all around you? Just something to think about.
If I wanted to go to Peru then I would make sure I am ready to go deep and explore and know within my self that I want to do it and have no doubts.
Hope that helps