All I can offer is to say that hernia repair is one of the most unsuccessful surgeries around; I’ve heard way too many stories of relapse after relapse.
I have an incisional hernia near my navel from prostatectomy and so far have not had to do anything about it - luckily!
I keep looking online for a surgeon who fixes them the old fashioned way - with sutures only - but good luck with that.
This mesh nonsense keeps getting pushed as the “Canadian method” but that’s BS. The Shouldice Clinic in Canada uses many, many sutures for hernia repair - not mesh.
In fact, Sen Rand Paul had his own hernia done there at a cost of $14K and he’s a surgeon himself.
But your case sounds more extensive with multiple sites so mot sure what can be done…keep looking!