Variable excerpt when displaying search results

Hey everyone! I have a multi-language site that has a search function. Now each language has its own custom field in a channel for example: body_en, body_es, body_de.

The problem is that in the channel properties I can only define ONE field as the default excerpt field.

Therefore I’m trying to find out weather its possible to call a variable excerpt field when outputting to a search results page, based on the language version.

Something along the lines of this would be perfect!:

{if '{language_code}' == 'en'}
 {excerpt field="blurb_en"}{read_more}
{if:elseif '{language_code}' == 'es'}
 {excerpt field="blurb_es"}{read_more}
{if:else '{language_code}' == 'de'}
 {excerpt field="blurb_de"}{read_more}
{/if}

I’m already using ‘Search Results v1.3.4’ and this gives me the option of outputting custom fields, but not the excerpt field.

Any suggestions would be greatly appreciated!