Hi Keith
Greg Scace probably has exactly what you need. He built one for his T before moving to the guck snuffer and I am sure you could get it for a good price... He may even have his spare without modifications. He will be back in town after Cork if you can hold off for a bit. (next weekend)
I use a 1 to 2 halyard on the hoist. and a seperate tack line. This means that you have about 14 feet of line for each on the boat. We have not had any trouble with the halyard snaging on the drops.... the tack line is a bit dicey though... If I remember to toss if off the boat things seem to work well.
Take Care
Mark