Long MC Pushrod?

[Mr Handy]

I picked up a disk/drum MC on CL a couple weeks ago for my upcoming swap, I already have a rebuilt Booster. the MC I got has the deep socket which I believe means it would work with manual brakes, however I have read that there is a long pushrod that will allow me to use the MC with my booster...

Despite a large amount of searching I have not been able to find one listed on the web. If anyone out there can point me in the right direction as to where I could find one that would be great, also any other information on compatibility between booster and MC and what is involved in getting everything to work together would be great.