Vince, you seem to have done your reading and thinking about a program that might work for you. If you've got a specific thing you want to try, my vote is that you just go ahead and try it. See how it works and let us know.
In your place, I'd be tempted to use a single kettlebell press rather than doubles. Less tiring in your lower back, more focus on building a resilient core, and for most people involved in other activities as you are, perhaps a better default choice than doubles, the latter perhaps being better suited to those for whom the kettlebell is the main focus.
-S-
In your place, I'd be tempted to use a single kettlebell press rather than doubles. Less tiring in your lower back, more focus on building a resilient core, and for most people involved in other activities as you are, perhaps a better default choice than doubles, the latter perhaps being better suited to those for whom the kettlebell is the main focus.
-S-