To some of your questions:
““Inside the adenovirus is the DNA that your body will use to make into RNA and then into the spike protein of the coronavirus,” said Gandhi. She noted that the DNA and RNA then quickly degrade in the human body and do not have the ability to affect our chromosomes.”
https://www.ucsf.edu/news/2021/03/420071/how-effective-johnson-johnson-covid-19-vaccine-heres-what-you-should-know
The adenovirus they use is incapable of replicating too.
Since you’re a guy, of course the clotting isn’t a worry.
I’ve decided to go with the Pfizer.
I believe the Novavax shot is “old style” dead virus type and should be out in a few months.
I think one of the China Vaccines is “old style”, but... it’s Chinese.
That's funny, I think YOU were the one who posted me the link to one manufacturer where their adenovirus was undergoing recombination while still in the manufacturing process.
I included the links on on of my other posts to @NonValueAdded in this thread.