Hi Spacedust,
Buy something like this: https://i-hosting.co/overstock - it costs only $7 and it's a perfect server for slave test server.
For a test server is $ 7 very expensive. It should be $ 0.007!
You can order a test server with
www.DigitalOcean.com and pay per hour for the test server.
When you are finished with the test, you only pay for the hour. Make an image in your account and lest it remain. This means you park the server and DO NOT PAY FOR IT on mnthly charges.
When you need one more hour, then create a server "droplet" and pay for one more hour.
In one month they bill for maximum 620 hours and costs $ 5.
So testing a server for 62 hours it would costs $ 0.50!
You can test it in Los Sngeles, Amsterdam, Singapore and New York.
By the way, I liked your creative title making competence "and bug on welcome". You made me laugh...