Am guessing here but lets look at some numbers.
wife, wants 500,000 by way of settlement and 50 acres of land at market value of 10,000/acre is on offer.
This land was bought for 2,000/acre prior to 07/12/2011.
Ignore any reliefs, exemption,threshold and the like, there is a gain of 400,000 on the land.
What the husband wants is to transfer this gain to wife at market price, without crystallising the gain and pay any tax.
The rules wont allow that so why does he not sell the land at market price to the wife and pay any tax on it.
Otherwise he will have to pay the tax on gain to date to wife.