replacing rod with 1*19 wire

[lfreeman]

I'm thinking about making an offer on an esprit 37 with rod rigging. The discussion of rod versus wire earlier in this thread was useful.

Don't know the age of the rigging on this particular boat, or it's inspection history so I would want to have a complete inspection done. and probably re-head the rods (at a minimum). I want to consider the possibility of a complete rerig when I make the offer.

Question is, how much of the length of the rod gets used up in re-heading and are longer screws for the Navtec screw-type turnbuckles available to make up for loss of length of the rod?

Thanks, Larry