Help me surprise my dad on his 80th birthday.

I was originally on track to save for this trip on my own, but the cost of living crisis, massive petrol price hikes, post Olympics tax hikes and general cost increases have taken my salary from having extra to save every month to needing to sell things to make ends meet.

I have already secured a month off from work as this was something I have been planning for a while. At my best saving estimates, if I can do a few more side gigs. i should barely have enough for a post Corona-priced plane ticket. But I will literally have nothing to spend back home, let alone pay for things that need to be paid while I am away.
So once again I turn to you all, cap in hand, to help me gat a thirteenth cheque in a year when everyone is hurting, so I can fly across the world to spend some time with my old folks and friends back home, and to give my old man the dis-satisfaction of dealing with me on his 70th birthday.

The only request I have, other than your money, is please don't tell my dad (I want this to be a surprise) and please don't tell my mom (she'll blow her pension on this and that would cause her problems down the line)