Modifying job importer wp plugin

Currently my plugin imports jobs from Indeed - UK, Reed jobs and total jobs (UK). I want them all removed and replaced with the following functionality -

- Indeed European Countries (excel list attached)

Functionalities I do NOT want changed -

- the plugin imports salary / pay, i want to keep it like that
- the plugin imports and puts the job description, keep it like that
- the plugin imports and puts the job header as well, keep it like that
- the plugin also imports and categorizes the job type, viz. full time, part time, contract, permanent, temporary, keep it like that
- the plugin right now also imports the location, city of the job from its source, keep it like that....

so to reiterate, I want the current plugin to be replaced with indeed european sites

my job portal is a budget one, not big shot, to have a look i have kept the maintenance off, but its not launched yet - https://eurojobhunt.com/

its a budget job portal and i do not have huge budget, so please bid reasonably, its not a company!

DO NOT BID SOMETHING NOW AND LATER ASK FOR MORE MONEY, READ MY PROJECT DESCRIPTION BEFORE EVEN BIDDING

WRITE - 'HERE WE GO...' SO THAT I KNOW YOU READ THE JOB DESCRIPTION