I know this has been discussed a few times, and I did use the search function . . . but still blur so hope u all dun mind i post again hor . . .

I want to buy a plate from someone who has retain plate abc1234z last month buy paying LTA 1300. Car already scraped.

Anyone know the procedure of buying abc1234z and putting it on my current 1 year old ride?
I can check Website Promo Video on internet but I didn't find the right solution. Any shared experience on a similar matter or additional things I could do would be appreciated.