Out of my DIY comfort zone. Raised beds.

I've been making my first raised bed today. It's taken a very long time, because the planks are thin and narrow, so thin (and so many do I have) that I decided to nail two together in order to make a thicker, and theoretically sturdier, plank. I wish I had just gone out and bought used scaffolding boards in some respects (I couldn't, I know. You can't throw out that much free timber and buy more, especially when it's an allotment) because all the measuring, sawing, and then nailing together has taken an unreal amount of time. I wished a thousand times today that I had a power saw. Still, I'm about 90% of the way there in terms of cutting and sawing, and all I have to do is screw the bloody things together tomorrow. At least I have a drill.
I'm going to need to get down there and do it early, anyway. Its going to rain in the afternoon and I'm determined to get the manure (£££) and the rest of the soil and compost in there tomorrow so it can get on with being weathered in. I'm going to take 48 hours off when I've done then try and get on with the rest of the raised beds straight away (dependent on how I ache.) I'm determined to make these beds no longer than one plank by half a plank to cut down on the bloody DIY. (I've just checked out nail guns on amazon. They aren't cheap.) I wonder if it would be easier if I had a bigger hammer/better saw. It's all money though, right? And I can get it done; I've got plenty of time, if not very much physical strength or patience. All stuff to add to the wish list I suppose.