Show us your home made tools

Also, one cheap/ free way to get a cam in is to use an old cam as an install tool.

You just cut the head off of a bolt or use allthread and bottom it out in the cam with jamb nuts, take the nuts off of the thread, thread the old cam and stud into the new cam and it counterbalances nice, as a handle. If you use loctite, it helps keep the stud in the old cam/ tool.

If the bearing journals are good on the cam, keep them nice and use it for checking bearing feel on install. Use new cam to place old one in, check, flip it around, put the new cam in.