Pertronix digital HP is only box I know of in $200 range with start up timing delay, and has other features too.

I plan to add one shortly. Mainly for start up timing delay and rev limiter. In summer after some heat soak, and 16 or more initial, that 440 will be hard to crank without it.

Yea, you can add a kill button off the tach wire to get it spin. One more thing to remember to use though.