If you put Machine Heads rather than Tuners you might have got more replies.
To be more helpful, look at some of the Gotoh’s. .They are not cheap but in my opinion they are the best. You will need to measure the post hole and make sure that the machine heads will fit in the space. If it looks like you will need to modify the bass, look at different models. I did this too late, after I modded mine I found a Gotoh model that would have slipped straight in.