Chris, you will need to run your halyard down the mast to the forward beam, do not use the on-mast block-clete, but through a block on the forward beam and out front to the tack line (see diagram above).
Tie a single block onto the tail of your tack line, (unless you want to go with a 2-1 double block setup) adjust the length so that when the halyard is tight (spinn-up) the tack line is also tight (tack at pole tip) and then the halyard comes back from that block at the tail of the tack line to the forward beam, to a cleat mounted there on the beam.
Personally, I do not like the system as it adds drag to the halyard when you are raising it, you have to pull harder, and you have to pull straight back from the beam. I use the two line system even when Uni, as I can first pull the tack line out with one or two quick pulls, then I can pull downwards from the mast block-cleat with little drag, the spin comes up quickly.
I also don't like it during a take down because I like to dump the halyard and snuff quickly, then at the end, release the tack line. If you are using the single line setup, you will be releasing the tack line at the same time you release the halyard, and the foot of the spin can blow out to the side of the boat and even get under the hull if you are not quick with the snuffing line.
Some guys love the single line setup, so try it and see, but you will need to add a cleat to your forward beam to do it. If you want to try it first, without drilling your beam, you can use the jib sheet cleat (go jib-less for the trial) for the halyard instead. All you will need is a single harken for the tail of the tack line to try it. Don't cut any lines until you are sure you want to do it!