I always found when it comes to smartmove, its excellent converting from Cisco to CP, never an issue. When it comes to Fortigate and PAN conversion, its a different story. But honestly, most vendors are like that, you wont sadly find a tool that would do everything for you, since formats are totally different.
What my colleagues and I usually do is "dump" the outputs in notepad++ and then convert it according to format accepted by the vendor we are converting to.
Now, when it comes to Check Point, you cant import .csv file containing all the rules (was possible back in R77 and before, but not since R80 sadly), so I would check if something could be done via API.
https://sc1.checkpoint.com/documents/latest/APIs/
Otherwise, I would contact Professional services to see if they can assist, as TAC would not be able to help with something like this.
Hope that helps.
Andy