Version 5 of ACM Overhaul is still planned, but unfortunately it won't be anytime soon as I just have alot going on in my life at the moment.
An internal test build of Version 5 was released quite a while back, but I think alot of people missed it being in the huge Steam Thread.
Head to this youtube video and follow ThisNthaT's instructions and you will be up and running in no time!
The tutorial includes all the links you will need
Show some appreciation for ThisNthatT's hard work by giving him a like and subscribing! Thankyou everyone