Ah, insurance battles....
Unfortunately, unless you got your car assessed at a certain value and adjusted your premiums *before* the crash, you have to go with whatever they say it's worth. And they think an '84 non-SE is worth about 1g.
It's too bloody easy to do 1g of damage in body work alone, so they tend to most of them off.
If they have no clue what your car is worth, then you're gonna have a *hell* of a time finding a good price. Unfortunately for you (but fortunate for those of us who pick up extra 7s) Rx7s don't sell for much. You see modded 7's sell for less than the value of their aftermarket parts often.
Most people on this forum seem to only ever buy 7s if they're under $500, and certainly under $1000.
However, some people seem to think their car is worth more. These people usually don't know what they're talking about and have trouble selling their sevens for outrageous money. This can help you
Here's an autotrader search I did, which shows two near 2g, and one quoted at 8g.
Sorry I can't help any more than that. Stock 7s just aren't quoted at high prices. If you want to have better insurance coverage next time you're gonna have to do what I'm trying to do: Get your car assessed for it's value, then pay through the nose for your insurance. Insurance companies figure that a 20 year old car should be a beat-up old rustbucket moneypit which isn't worth fixing. In some cases, they are. In the case of most sevens for sale nowadays though, it doesn't seem to be. I think any 7 with less than 200,000km on it after 20 years should still be worth a good chunk.
Ask Manntis, he's fighting a battle (or was fighting a battle) over this same thing when he crashed Pamela. And that car was B-E-A-UTIFUL. Absolutely pristine condition.