I purchased my subframe alignment pins in 2002 from Automotive Tools and Supplies Ltd in the UK
Automotive Tools and Supplies. The cost was 28.70 pounds or about $46 with another $16.80 for shipping from UK to Virginia, US (About $63 total). Shipping took several weeks.
Unfortunately, I searched their catalog before posting this and could not find the pins listed...Perhaps they are discontinued (you could ask them via email). When I get time I will look up the part number and post it here.
In 2002 I could not find a US based tool supplier offering these pins (and I certainly looked!) so I ended up ordering from overseas.
I don't know if you really need these to re-install subframes - I am just a stubborn SOB when it comes to doing auto repairs by the book. It does seem to me that it is so much work to do this type of job that it was worth the money to assure they are "factory" aligned.
You could also just spray paint around the mounting points before removal (or otherwise mark them) and use the spray pattern to ensure you have returned alignment during installation. Would work assuming alignment was OK to start with.
