Helo Chainsaw. I did a conversion on my 50 Model Vagabond some 5 years ago. Had no problems what so ever. I put an a/c in my ca and thats 's why I went to 12V. During the change over I used the original wiring but on the intruments I did add on a voltage regulator.. All the 51's and up have them and they are readily available from a parts store. As my car has a 3 speed with o/d used all of the original relays, o/d solenoid, horns, horn relay, and starter. It isn't necessary to change these over to 12V. I did eventually install a GM 55 Amp alternator and put in a 12 V bat\tery. Changed the cil, I used one with a built in resistor to carry the 12v load from NAPA. Changed all of the light bulbs and that was about it. Remember that the wiring in a 6volt system is larger than what is in a 12volt system, That's why the 12v will work with 6volt wiring.Have any questions please contact me, ok? Thanks and good luck, Richard
You'll be amazed as to how quick the engine starts after you make the change.