Water Main Pipe (Hidden Behind Kitchen Cabinet) Leaking

[ashomech 0]

I have a unique problem. I had renovated my house 3 years back.

But, the plumbing contractor never changed all the pipes in kitchen. He left the old copper pipe behind the cabinet unchanged.

Now the copper pipe (10 yrs old already) started developing fine hole and started leaking.

I engaged a plumber to change the leaking portion only (managed to change without removing the cabinet by braking open a small potion of cabinet). The leaking problem is fixed.

But to make the things worse, his waking an shaking during installation made another joint (the very entry point of the pipe into the unit) to leak and now this joint is no way accessible without removing the cabinet.

Can any kind soul help me to solve this problem with minimal damage to my existing cabinet and with minimal cost?

Any type of useful advise/knowledge sharing/contractor recommendation is welcome.

I tried to illustrate the leak as much as i can in the photo below.

Close up of the changed pipe.