Something that can be hard to appreciate if you haven't managed this sort of project is that it can be surprisingly hard to throw money at the problem.
If you try to hire at your regular "bar" for skill for boring work like this - people will often quit. This is one of the reasons many company's integrations are lacking despite it being a strategic interest - integration work is miserable and doesn't help your career.
Hiring below the skillbar at the same pay, is dangerous and often doesn't actually work out - if it was that easy someone more skilled probably would have fixed this a while ago.
So you try to pay more for the miserable work - but hold on, now you have to pay out of band salaries, and legal tells you that opens you to massive liabilities.
Ok - maybe you can just level them differently? No, HR will tell you that will mess with all your internal level processes - which are key to running the company. They're going to add a lot of additional overhead tracking these "fake" leveling bands and dealing with the consequences.
None of this means the problem is literally unsolvable, but it now requires a huge amount of time and effort from people near the top of the company who everyone would much rather spend their time on making the company better.
All of this to say - sure you could solve this problem, but it's actually much more complex than adding some line items to a budget.
Source: have watched many big companies try and fail for years to staff unsexy work like this.