My opinion is, absolutely not!
Rebuilding a Garand actually DIMINISHES the value as a collectable. If you want to spend $$$ on a Garand, typically that money goes towards making it a match rifle, not to "restoring" it.
You can take a $400-500 starter Garand from the CMP, and replace the SAME parts and have it reparked and put on new wood and put $500, or more, back in your pocket.
OR, do what many of us do, and NOT refinish it (many don't strictly require it), do some mild refinishing on the ORIGINAL wood (much more authentic than new wood), and have a much more original item for around $600.
If you really want to spend the $$$, you can go to
http://www.fulton-armory.com and order a Garand that has been rebuilt by the best in the business for about $1200. Even that is rich, although Fulton's reputation is bettered by nobody in the business. You can go to many others and get a great rifle for less.
I'm not putting down Miltech, I've not done any business with them. I just think their a little rich, and I also think that you might like a vintage Garand as much as a rebuilt one.
Here are some pictures of two of my Garands from the CMP:
CMP Garands
The 99 Colectors grade (a grade you cannot order today) is an all original HRA... the pix I took just after opening up the box. Just after that, I rubbed the stock down with Linseed oil, and rubbed the metal down with gun lube, and it is beautiful.
The 1999 Service Grade is now in the fancy Fajen wood, and looks like a million, but hasn't been refinish. I've got a total of about $525 in that gun, less the flash hider, but including the fancy wood.