There should be that content for 7.4.3. If it's not on the epd site, open a support ticket to ask for it. I believe it's part of the 'other compliance templates' bundle.
You can't use the content from 7.6.
Have already done that. Looks like NIST template
only for Solarisv8-9 . Will there be a 10 or am I stuck ?
If it's not there already, you'd need to find out if it's on the roadmap. Open a support ticket on this. if it's not on the roadmap, i'd request it.