To make it easy to install, I would use an engine support bar. I bought the $79 one from harbor freight. I purchased it initially when I dropped the transmission to upgrade the clutch. It worked very well. There’s also a few options cheaper on Amazon but I have no experience with them. From my experience and looking back, the threads on the supports did gull somewhat from adjusting the engine up and down under load. From the beginning, I would make sure to antisieze the threads good to help prevent it from happening if I were you. If not using the engine support bar, you can also use a jack on a block of wood or rubber block under the oil pan and that works fine for the mount change too, but would recommend the engine support bar over that method if you can get your hands on one. They are easy to change out though besides that. Also make sure you lift the mounts with the jack or support bar and not use the bolts to close gaps and realigning during reinstall. The threads are known to strip out if too much tension is put on them and then created a bigger issue to deal with. Good luck.