Without getting into details ...
I've done cost comparisons for several customers and I've found that the price of the wire and fittings for Norseman, Sta-lok, or Hi-Mod (DIY labour) is much higher than the cost of the same rig including swage labour.Mechanical fittings start making sense when you replace the wire the second or third time (assuming you pay yourself $0 for labour).The break even time/price changes with the size of the boat as the price difference between mechanical fittings and swage fittings is not constant.The biggest factor is turnbuckles. If you need new turnbuckles the price differential of the other fittings is a smaller percentage. For 1/4" wire Sta-Lok terminals are 3-4 times the price of swage terminals. Swage labour for 1/4" wire is $10 per swage in our shop, so the price including labour for a 1/4 wire 1/2" thread rigging stud is about $35.00 installed vs $82.00 for the same fitting in sta-lok with no install labour. IIRC the wire is about $2.40/ft. This makes a 40 foot 1/4" stay with an Eye at one end and a Stud on the other about $175 with swage fittings installed vs about $250 with Sta-Loks you have to install yourself. when replacement time rolls around you can spend another $175 or just $96 for the wire. Total is about the same for replacing the rigging twice.Prices are comparable up to about 3/8" wire, then it gets silly ... a Sta-lok stud for 7/16 wire has a retail price of $417! We just quoted a complete set of rigging for a 43' boat, cutter rigged (two furlers to replace stays inside of), with a split back stay and running backs. Customer has specified all new turnbuckles ... $5800 including the labour to disassemble the furlers and replace the wires. I would expect Norseman or Sta-Lok fittings to more than double that figure.I plan to carry one 1/4" wire with a swaged eye on one end, long enough to make up a back stay, shroud, or headstay and a Hi-Mod stud as a spare. Should give me a fighting chance to make a repair if I have to.As usual, Fred makes good points. His repair ideas are very good. If you convert turn buckles from Toggle/Stud to Toggle/Toggle or Toggle/Fork, you can use the same turnbuckle for the jury rig. This also allows eyes at both ends of the wires and reduces (marginally) the cost of rigging replacement.Randy