Home Brew Power-line Inductors

I've been toying around with the idea of using home made inductors in my amp power to try and reduce ripple on the supply lines.

I was thinking of just winding some lacquered wire around a wooden bobin and using cable ties to hold it together - any suggestions on the dimensions and number of turns, etc? (also diameter of wire?).

I'm running a dual P3A amp with 41V (approx) rails.

The arrangement would be this:


If my thinking is right this would create a high pass LC filter to ground, attenuating unwanted frequencies?