For the high pressure side, the most economical dry-break fittings I've found so far are Jiffy-Tite.
They're good for 200 PSI, which is more than enough for the SP's fuel line pressures.
You'll no doubt need braided fuel line and 12mm banjo bolts with AN ends to match, but it will be super easy to remove the fuel tank afterwards.
Jiffy-Tite site:
http://motorsports.jiffy-tite.com/Jiffy-Tite UK distributor:
Think Auto
292 Worton Road
Isleworth TW7 6EL United Kingdom
Phone: 011-44-020-8568-1172