I have had my Delta 46-460 for about 11 or 12 years now, and have had no problems with it. Today, I was just finishing a major (for me) project, and the power switch broke. I haven't taken it apart yet to see what actually broke, but but it seems that it would likely be the switch or actuator that broke. Neither part is available at e-replacement, and I haven't checked others yet. I think my 460 is a type one, but I do not know how to determine that. If it is a type 2, both parts are available, and are even reasonably priced. My questions are:

How do I determine the lathe type 1 or 2?
Where else would you look for replacement parts?
Dose anyone know if the Power switch, actuator, and reverse switch on a type 2 are compatible with a type one lathe? I ask about the reverse switch, because it is
reasonably priced, and lathe history is that it is a common problem.
Any tips for replacing the switch?

TIA