I have a buffet for about 50 people at the end of May and want as much of the food as possible to be homemade. This means a lot of it will need to be made in advance and put in the freezer- sausage rolls, quiches, pizza bases, cupcakes etc. Can I start now? Will these things keep in the freezer for almost 3 months or should i leave it till a bit later? How long do you think these things will safely keep in the freezer for?