Complications in the compost heap

I've been diligently contributing to my compost heap for the last 4.5 years but not taking any of the compost out. And now that I have a vegetable garden ready and waiting for compost, I've found that it's not really fit for purpose. The heap is being invaded by kikuyu grass and convolvulus and I've never turned it as it's been too tricky to take it to pieces and get stuck in. Worse still, the wood is rotting after being eaten - devoured - by wood lice. 

So I've dismantled one of  the heaps and salvaged a few of the planks to make a temporary three-sided heap which I'll be able to turn more easily. So far the chickens haven't scattered the waste too far. 

I've been looking around for ideas for a more permanent construction and think that something like this might work - five pallets upcycled to create two bays. The front panel is made from a board which can be easily removed for turning the compost and then using it. 

And I'll be borrowing the pest-proofing technique from this design...