Master cylinder question

[Trucknut57]

I'm gathering all the parts for the 57 so i can switch from non power disc/drum to hydroboosted disc/disc. Here is what I have so far; hydroboost unit from a 93 astro van, backing plates, calipers, and brackets from a 98 blazer.

I need some help finding a master cylinder I can use that has a remote resivoir with the disc/disc setup. I want to keep the unit under the floor board and mount the resivoir on the firewall.

I have seen a couple ideas for this setup so far, but I would like some other ideas. Anyone got some???

Thanks in advance.

Wess