Jim, print off this post I did a year ago. It describes the steps in the TX ASVE process:
Texas registration - engine age
You don't actually have to have an MSO if you fill out all the forms and take tracings of the "VIN" and the engine VIN if it has one. Things will go smoothly if you have purchase receipts or bill of sale for chassis, engine, trans, paint, etc. You will sign a certification that *you* built the car yourself.
First step is insurance, then inspection, then title and registration. Your insurance guy should cooperate with putting the description as 1965 Ford Replica on the insurance card. That will get it inspected as a 65. Technically, the civilian inspection stations are not supposed to be doing these newly built, non-compliant cars. You may have one that agrees to do it, but the DPS says the correct process is to bring it to one of their Waiver Stations and have them do it. Do whatever you can get away with, the title and registration people just want the green sheet.
good luck,
Sam