360 Magnum Swap having trouble finding a header that will fit

Hello all.
I am in search of a header that will fit my application.
I have a 1973 dart swinger, with a 72 K frame for a 318, I have a Borgeson Power Steering box and will be running power brakes.
The 360 Magnum is from a 97' Ram. I will be using a 727 transmission.
The stock ram manifolds did not fit, sitting on the steering box.
I contacted TTI and asked about fitment, they told me they don't have anything that will fit with the Borgeson steering box and that I would need to "slot" the gearbox and slide it over for their headers to fit.... I'm not doing that.

Any suggestions?
Anyone with this setup that has done this successfully?

Thanks in advance.

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