if you work 25 hours per week at $600nt/hour then you should be able to make just over $10k US in 6 months - not including expenses. Let’s hope you get 600nt/hour, that’s about the average salary, but you may start with $500nt/hour, earning you just over 9k US in 6 months.
(exchange rate used: 1US = 33nt$)
Recouping your $5k US should be no problem.
And finding employment may only take a week, if that.
But you say you’re going to stay for 6 months - what kind of visa do you have?
I’m a little concerned that you may have to do visa runs in order to stay in Taiwan for that long. (visa runs = going to HK or somewhere close for a day or more to renew your visitor visa) Not a problem if you’re not worried about this. (please note, working without an *ARC is illegal, you can get an *ARC if you have an employer apply for one for you) The chances of being caught are next to none though. I’d say about 60% of foreigners here work without an ARC. I don’t recommend working illegally, but that’s your choice.
*ARC = Alien Resident Certificate
EDIT: I forgot to mention, if you do work illegally (as many of us do), you will not pay Tax. If your employer takes Tax out, they are actually putting that money in their own pocket.
Of course there’s the other problem, some schools will not employ you under a 6 month term. They prefer 1 year contracts, that way you can get a visa and ARC to last you the contracted employment.
Easy enough. There’s jobs everywhere!
I hope I have been of some help to you.
Btw, always visit as many schools as you can. Don’t accept the first job offered to you, it’s always a good idea to shop around (especially in Taiwan).
Good luck and be careful!
p.s. Search the legal matters forum for any legal questions - they have all the answers to your questions there.