Steven
I made my comments based on what you stated were your objectives. You spelled out some, that you would prune, that you wanted apples and peaches. Obviously if you plant on a closer spacing you can get more varieties. That's why I suggested to plant on a closer spacing. I suggested the larger peach tree as I feel there's more reasons for planting than to eat out of hand. If you have 15 fruit trees you have choices. One is to provide some for canning, or freezing or perhaps for drying. It's my observation that I'm going to get a lot more peaches out of my full tree trimmed to the same size as the semi-dwarf. That's the reason for my suggestion. If you're thinking of a cherry tree I'd suggest a bigger size tree for tart cherries than for sweet cherries as I'd think you would use the tart cherries for pies and be more likely to store a large quantity.
I'd also suggest you space out the fruits you choose so that you have something coming ripe throughout the growing season, but then also having fruit for the coming seasons. I recently planted a baking apple, a dessert apple, a pie/cider apple and a storage apple. The storage apple I selected was the Black Oxford which is said to store till July of the following season. The pie/cider apple I chose is the Redfield which has a red fruit which makes a
rose cider or adds its red color and flavor to a pie or to sauce. I've also planted dessert apples that I and my wife prefer, Golden Delicious, Honeycrisp and MacIntosh which I love.
What I'm thinking is that you need to make your size choices based on the need for quantity and for time. If you want a pie apple, you need to realize how many pies you might make. I wouldn't suggest a full size pie apple tree if your going to bake 4 pie apples each year. If you want a dessert apple, you don't want a full size tree and be overwhelmed. In my orchard I have apples coming ripe from July with a Yellow Transparent till late in the fall. I plant only semi-dwarf, usually, but have some existing full size trees that came with the property, but I have more room that your 1000 sq. ft.
I wish you luck with your orchard and hope that you find it enjoyable , the planning, the work and the consumption for you and your family.