MPU-5060 interface questions....

That is not possible.
The SPI bus is the most simple serial bus. It shifts data.
The UART serial bus does a little more, there is also a start and stop bit and a fixed frequency.
The I2C bus has SDA and SCL and both SDA and SCL signals can go in both directions. It is still a serial bus, but it is more than shifting data.

I assume the sensor is a MPU-6050 ?

It is possible to use other pins with a software I2C library.