I don't want to sound contrary, but pruning is a controversial practice. Especially with determinate tomatoes. (Haven't looked up the listed toms). If you are planting in larger pots, use as large pots as you possibly can. 5 gal bucket with plenty of drainage holes seems to be the consensus minimum size.
staking is best done early on to avoid damaging roots. with containers, provision should be made to keep them from tipping over. Some people wire or screw stakes on to the containers with a block of wood to sandwich the plastic wall and secure the containers and stakes to solid supports like balcony railings, etc.
Planting time... Um. I avoid planting on hot sunny day if possible, or place newly planted containers in shade/dappled shade to avoid the sun. Some people say it's BETTER to plant in late PM. When I can, I like planting on overcast day with rain expected later. often I'm CAUGHT in the rain before finishing
(Some day rain will fall again in NJ....). Be sure to water -- as in soak thoroughly -- before and after uppotting to minimize damage to the roots.