Is there a strategic way to structure a purchase so that 51% of it is allocated for real estate, allowing for extended payments over 25 years instead of 10?

For example, if the total purchase price is $6.5M but the real estate is valued at only $3.2M, how would you approach this? I understand that in order to qualify for a 25-year payment term, real estate needs to make up at least 51% of the transaction. Is that correct?