Nobody can help until you have measurements close enough to make it work, unless you're just going to hand the parts to them and ask them to design and build, in which case expect the cost to triple.
When I was a boy, 'arris was your man for caliper adapters, if they don't have an OTP solution they can probably make one https://www.harris-performance.com/product/harris-front-rear-caliper-plates-conversions/
Nobody can help until you have measurements close enough to make it work, unless you're just going to hand the parts to them and ask them to design and build, in which case expect the cost to triple.
When I was a boy, 'arris was your man for caliper adapters, if they don't have an OTP solution they can probably make one
https://www.harris-performance.com/product/harris-front-rear-caliper-plates-conversions/