If you get one that does turn the eggs automatically it will make it so much easier, but it depends on your time available and budget. We have a Brinsea Octagon 20 advance, but not sure if they still make that model. We also bought it in late summer, which meant that we managed to get the price reduced by a bit, as it was out of season. It works very well, and doesn't need any maintenance other than cleaning.
Quite often game dealers have quite a good selection, and also refurbished ones for sale, from customers (pheasant rearers) that have up-graded.