Everything you’re needing is absolutely possible.
To disable the default extra output that Pro offers, you just need to uncheck this setting if it’s already checked.

It’ll be in the “WooCommerce” section of your Algolia admin menu. /wp-admin/admin.php?page=wpswa_pro_woocommerce
The rest can be accomplished through our regular available options for customizing the template files. This is all done with just the free plugin, nothing that was taken over with the Pro plugin https://github.com/WebDevStudios/wp-search-with-algolia/wiki/Customize-Templates
Here’s the code version of the template extra output we use with the option above, which would be able to be whittled down to just the parts you want.
<p>
<# if ( data.sku ) { #>
<?php esc_html_e( 'SKU:', 'wp-search-with-algolia-pro' ); ?>
{{ data.sku }}
<# } #>
<# if ( data.price || data.sale_price ) { #>
<?php esc_html_e( 'Price:', 'wp-search-with-algolia-pro' ); ?>
<# if ( data.sale_price ) { #>
<# if ( data.price ) { #>
<s>
data.price_formatted
</s>
<# } #>
data.sale_price_formatted
<# } #>
<# if ( ! data.sale_price && data.price ) { #>
data.price_formatted
<# if ( data.max_price ) { #>
- data.max_price_formatted
<# } #>
<# } #>
<# } #>
</p>
If even with all this information, you still prefer a refund, please reach out over at https://pluginize.com/contact/ and we’ll get that process going. Hopefully this information above is useful to get you to where you need to be though.