The shifter broke on my Vega ( four speed ) I went to the local bone yard to get another one, but there wasn't one to be had, anywhere. The counter guy told me that the early Corvette unit would work if you used the Vega mount. And he just happened to have one. At a small fortune. But I was getting tired of using the screwdriver, so I shelled out the bucks. Much shorter throw, in case I ever wanted to race the s**tbox.
You could buy a Henty J from Sears, as their Allstate;
Used to see this one running the local strips when it was much prettier.
For the lawn tractor, I have a race Alfa 2 litre. ( yes, Bernard, the one sitting outside the garage) Should be able to get the mowing done a little quicker.
And enamel will cure-out much faster if you reduce it with lacquer thinner instead of the Testors thinner. But be careful laying on the coats over plastic. You could craze it.