never been involved in a take over previous. if we are offered a...

never been involved in a take over previous. if we are offered a cash buy out then i get the idea of having a large CGT bill. if however we are offered shares in the purchasing company, do we not declare the market price of those shares as the DW8 sale price and assign profit accordingly, with the assignation price of the new shares becoming the cost base? or do we simply transfer our own cost base for our DW8 holding to the new shares, thus delaying any CGT liabilities till any of the new shares are disposed of?