Fuel tanks

Close your eyes open the wallet bite the bullet and get a replacement tank by outback or someone then all the buggering about has been done.
A good product is woth the price and it sure helps with long distances. So don't be so tight. A set of tyres cost more and only last a couple of years but the tank will last to you get rid of the vehicle.

Long Range tanks may be a good idea to some but I have over the years seen travellers with lots of problems with them especially with venting, fuel supply and not getting the right amount of fuel through to the othe tank etc. You have to choose well and make sure that the persons who fit the tank do a good job. Factory LR tanks are another story and normaslly work well. Having had two LR tanks fitted over the years I have shied away from them.

The old archiac method of carrying steel jerry cans works for me. I have set my wagon up to carry up to eight jerries if needed to compliment the 95litre standard diesel tank. Carried too much fuel on my last trip though(6 jerries) and will now look at only carrying 4 jerries, depending on the distances involved.

4 jerries of good quality will set you back $200.

4WD Sytems are a good tank, have one in the Surf. Not sure but I think any long range tank (replacing original) will require mods to the exhaust system. 4WDSystems (and others) also have aux tanks to fit under the rear. Usually more expensive coz it's a "new" system not replacing/using original lines/sender etc.

For more ideas checkout the techsite (body mods) at Toyota Surf or even join up;

http://www.toyotasurf.asn.au/

Otherwise the cheapest wayout is jerry's as previously suggested.

What model Forerunner?

I have a 125 litre Logranger that cam off a mid to late 80s runner that I may be persuaded to part with.

Try here

http://www.longrangeautomotive.com.au/vehicles/toyota.html