Install R packages Removed from CRAN (from the source)

I need to use some really useful R packages but unfortunately they are removed from CRAN which means I cannot just install.packages(...) from the cloud and I must install it from the source.

There are two ways of doing this:

(1)

library(devtools)
install_url('http://cran.r-project.org/src/contrib/Archive/dynamo/dynamo_0.1.3.tar.gz')
install_url('http://cran.r-project.org/src/contrib/Archive/gafit/gafit_0.4.tar.gz')

(2) Which I prefer!!
Download the package source first and then:

install.packages('/path/dynamo_0.1.3.tar.gz', type = 'source')

ref:
http://stackoverflow.com/questions/18655976/how-to-install-the-package-that-has-been-removed-from-the-cran-repository-in-r-e