Hello,
1/ You need to use System location.
https://www.8theme.com/documentation/xstore/theme-translation/base-theme-translation/
What exactly texts are untranslated?
There below does not appear to show all – disable Display With Tabs in Header builder > search
2/ Use the next code to hide prices:
header .ajax-results-wrapper .price {
display: none !important;
}Regards