Towed, the rear frame on mine stands on two "feet" that will bolt onto the rear chassis struts, so as not to make any changes to the chassis for inspection purposes.
I did make mine a little high and have just noticed that the body rests on it at the back. However, that said, I am using 15" wheels and a 80mm lowering block so it gives just enough clearance IMHO. The suspension needs to settle down a bit and obviously with a full tank of fuel and my lardy frame in it, it will probably look slammed!
The tank is mounted with the sender facing backwards so I can change it at a later date if it buggers up and I will weld the bolts in so it is easy to refit tank by "hanging" it on the bolts before putting the nuts on! The tank should just come out the back underneath should I ever need to change it! I will coat it liberally in waxoly and it has had 3 thick coats of chassis paint so hopefully that won't be necessary in my lifetime!!
Here are a couple of extra shots for you...
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