Head work

[Belle427]

I plan to do a cam change this coming winter as the car is nearly touching 80k miles, I will probably go for the Mc1.
I'm thinking of removing the heads at the same time to send away and get someone to look at the porting work etc and wanted to know who could be trusted with this?
I've seen turner engineering recommended a lot and was thinking of using them.
Any advice would be much appreciated, the engine is a standard 400.