Programing a Bare Pic32
I am unaware of any Arduino-based tools for installing a bootloader on a PIC32. If you are going to work with PIC32 you really should invest in a proper programmer.

I often use (pretty much throw-away) Chinese clones of the PICkit2 programmer. You can find them on eBay nice and cheap.  Genuine Microchip programmers are pretty expensive, so these cheap clones are quite handy...

You will also want to install the chipKIT environment into the Arduino IDE.

When it comes to the bootloader there are no official boards that use those chips. So you will need to compile your own version, which is not trivial. You will need to install MPLAB-X and the XC32 compiler and create a new profile within the project with the right settings for your board. 

And then of course you will have to craft a board configuration for your custom board. 

All-in-all it's quite a complex task porting a new board / chip to the chipKIT environment, and you would probably be better off directly using MPLAB-X and programming directly in C (although it's harder to get started in that environment). The PIC32 chips are considerably more complicated to work with than little AVR chips.