I was asked for advice on this today but didn't get far. It hasn't been discussed in detail on the forum for several years as far as I'm aware.
I was asked why in 2017 the focus of starting a marriage is placed on money, and why if this is so it's not simply sufficient to show a bank statement.
As far as I'm concerned this tradition should be consigned to the history of previous centuries, and any expectation for a physical display and handing over of wealth by a non-Thai in this day and age is shallow inconsiderate and obscene.