First thing is safety when you are doing this. Only lift or move the engine enough to do the work that you need to do. The further you move the engine, the more likely that you will damage something connected to the engine. Take your time and look to make sure you have slack in the wires, hoses, cables, etc... before moving. DO NOT let the engine/transmission fall as something will surely get damaged if that happens. Check and then double check before and as you are moving the engine and transmission. Use a engine lift support.
https://duckduckgo.com/?q=engine+support&t=ffsb&ia=web
You may be able to make your own engine support from a 4x4, some eye bolts, and a chain. Link here with shown a home made wooden lift:
http://bernardembden.com/xjs/enginesupport/index.htm
p.s. You did a search here on this board about the lower arms and about the warning of cheap ebay arms that can not be aligned when installed.