What kind of turbo are you useing for this? as it would be the same kind of turbo for a punto true? if so let us know what kind of turbo your useing
Cheers 
All that i need now is some fresh end mills, fresh drill bits, pick up some stainless wire and bottles of argon and an extra regulator.
I'm assuming TIG, but...........
Don't get another regulator (or bottle, assuming big bottle, here) just get a two flow guage set up from your local welding supplier -- about 15 squid. You can then use one bottle, one regulator, and do the flow through the guages. Cheaper and easier.
If, though, you'v got an oxy/CO2 bottle, you can use that for the back purge (the reason you use Argon with TIG is just to protect the electrode, rather than the base metal). Some stuff on the Miller site about advantages of not using Argon for back purge, and Miller don't faff about!