Don't tell them you wrecked it twice.
Below is a quote from another post I made a few months ago. Make sure you are prepared when they come, and have prices for every damaged part.
Here is what I did:
When I wrecked last year I had to go through this. My bike was very customized, raked neck, springer front end, custom built bars, etc etc. I didn't trust a shop to properly do the estimate, so I did it myself. I went over the entire bike, and every part that was damaged I either got a price from Big Dog, or printed a catalog page from Custom Chrome or wherever with a picture of the part and a retail price. I got an esitmate from the paint guy, I figured the man hours for repair, and wrote up an invoice for labor, paying myself a shop rate to repair the bike. In the end, the bill was just below the "total" threshhold. The kid who hit me was also denying responsibility, even though the #1 witness in the report was the cop who was driving behind me when it happened, and he wrote the whole thing in my favour. I went through my own insurance, but had a snag with the adjuster. The first adjuster looked at the bike and said he wasn't able to estimate it because it was too "custom". I called and bitched up a storm, and got another adjuster. He insisted that they total the bike, but in the end, I worked out a deal that they would pay out the maximum non total amount, as long as I agreed not to add anything else once the bike was torn down. My insurance company waived my deductible because the accident report was so blatantly in my favour - the kid made a right from the far left lane, cutting hard across 2 lanes of traffic and right into me. Luckily there was a cop in an unmarked car right behind me who saw everything. So anyway, goto the shop where the bike is, personally document all the damage, call your insurance co and find out where the total threshold is, then start digging around for prices on everything. It's fine to let the shop do this, but stupid not to check their work. Have it all printed in color nice and neat for the adjuster so he can walk around the bike, look at the damaged part, verify the picture and price from the catalog, and document it. If the shop is gonna do the labour, make sure they don't throw anything extra in there once it's apart. My damages came to $11,500, just below the $11,900 total threshold.