E bay help with my FZR 600?

[MHeadling]

hi guys, you may be able to help me, iv sold my spare old track day hack FZR 600, a fella from Ireland has bought it, he has sent the £100 deposit via postal order and wants to send the money over to my local post office via western union? never heard of them?

So my Q's are- How long does it take to get the cash from a postal order?

How long will it take to get cash out of western union from my local post office?

He is sending a courier next tue 25th to pick the bike up, I thought id ask as I dont want to be mugged off!