An MSD guru turned me on to using the F150 ('91 302 I think) epoxy coil, which is the same as MSD sells in red for twice the money. Works way better than my Blaster2 ever did, and doesn't care about vertical/horizontal. It uses a 2-prong plug for the coil wires, which I use & adapt to the existing coil +/- wires.
As for the coil wire itself, I just use a regular modern wire with the female coil end.
Those 3 items run about $40 total at the local AutoZone.
To mount the coil, I usually just fab a bracket out of some 1/2" angle aluminum and a couple fasteners.