Hi,
You have two things which customize the product page layout:
- The files in the folder templates/YOUR_TEMPLATE/html/com_hikashop/product/
For these, you can just copy them to the same folder for your other template via FTP.
- The CSS applied on the different elements of the page.
That's a bit tricky due to the way the astore CSS is added to the page on your link. You can see that all the CSS of the template is crompressed into one big CSS file:
joomlatemplates.youjoomla.info/astore/ca...ore/css/e409b55c.php
So you would have to deactivate the CSS compression of the template and it should then allow you to more easily get the CSS specific to the product page and paste it in the CSS of your other template.
I can't say exactly what to do here as it depends on how both templates are made.