Jen
You say you want to spend as little as possible, but replies so far have been about machinery. For the sizes you would be working on, it would be far cheaper and not too exhausting to saw and plane by hand. Also, tablesaws and planers get dangerous with anything small and short.
I'd suggest that you buy a reasonable general purpose hardpoint saw, with the sort of teeth that work ok ripping and cross-cutting and break down your few planks by hand.
If you want to machine the sawn pieces, you can use a router (with a trimming cutter and a straightedge) as a small scale planer/thicknesser, and to work your mouldings. Bob Wearing's book on the router will inspire you to get the most out of it.
You say you want to spend as little as possible, but replies so far have been about machinery. For the sizes you would be working on, it would be far cheaper and not too exhausting to saw and plane by hand. Also, tablesaws and planers get dangerous with anything small and short.
I'd suggest that you buy a reasonable general purpose hardpoint saw, with the sort of teeth that work ok ripping and cross-cutting and break down your few planks by hand.
If you want to machine the sawn pieces, you can use a router (with a trimming cutter and a straightedge) as a small scale planer/thicknesser, and to work your mouldings. Bob Wearing's book on the router will inspire you to get the most out of it.