If you are looking for a PROJECT, there was a very interesting thread a while back where a guy extensively modified his 22/45. You can see the thread at: [/url]http://www.markii.org/forum/index.php?showtopic=1012&hl=chameleon[url].
NOTE: There shouldn't be a space between the "o" and the "n" at the end of the URL address above. I also can't seem to properly insert a hyperlink today...
The owner of the 22/45 did some fairly extensive (but not technically complex) grip modifications so that the pistol would accept most 1911-style grip panels.
There were lots of other mods, utilizing some different firearms finish products, etc.
Not really my kind of project, but I DID thoroughly enjoy watching someone spending some time on a rimfire project besides the usual "how much can I spend on my 10/22?" (Flame suit on, and yes, I'm in the middle of a 10/22 build myself. :oops:)