The first two have been answered, so I'll do the third. :D To convert to delay wipers, you need to:
1) install a wiper delay module inline on the column wiring harness at the base of the column,
2) install a new turn signal stalk w. the delay wiper function, and
3) replace the multifunction switch inside the column. This involves tearing down the column to parade rest. If you haven't done it before, it can be difficult. Easier just replace the whole steering column.