Do i need sucktion to wear my upper dentures?

oki am getting all my teeth out wed 21st and my late dad gave me his new dentures beforehe died in hope of me using them. The bottoms i can almost put them on now with all my bottom teeth are broken but the uppers seem a little small anyway i was going to maybe make them fit by drumril tool. This is going to be imposible huh i cant afford 1600.00 for my own and really dont want to go around at work with no teeth oh well must deal. So am i dreaming or has anyonedonethis before?please help.