Hack for connecting two terminal blocks?
Go find an electrician, and ask him (or her) for 6 inches of standard wiring cable for connecting junction boxes. Take this home and cut off the insulation. You'll have 3 six-inch lengths of solid 14 or 12 gauge wire. Stick one end of one piece into your terminal strip and measure the depth. Double this. Now cut two pieces of that length. Stick them into one terminal block and tighten. Now take the second block and rotate it 180 degrees so the screws are on the other side from the first, insert the wire, butt the two strips firmly together and tighten. Now wrap the blocks with 3 or 4 wraps of insulating tape (not scotch tape or masking tape) and you're done.

Note that if you butt the two blocks with the screws facing in the same direction you'll swap the inner and outer conductors of the cylindrical section.