Can anyone who has first hand exp. say approximately how much time to R&R the head gaskets on both sided takes start to finish? I am experienced but the time differs on separate makes..etc. I have all required tools and replacement parts already on hand. I have also contacted my local machine shop and they assure me a quick 2 day turnaround with the head clean and crack check. I need to be speedy as its my only vehicle and I have the kids during the day. Thanks!