So I sell (flip) bikes year round. Yes, right now is a slower time, but someone IS looking right now, you just need to find them. I have a '12 Bonneville, a '74 Honda CL360, and a '46 Harley EL for sale right now. I've sold bikes in January, I've sold bikes in July. There's no rhyme or reason to finding a buyer, just patience. Don't end up lowballing yourself just to get rid of it. You know what it's worth and what you want for it, stick to your price, but ask just a bit high for a little wiggle room. Every buyer wants to get a few hundred bucks off.
Did you tell your dealer about the mods in the hopes they'd offer more as a trade? I don't even know why they'd care on a bike that age (sorry, but it's getting old)
Do NOT part it out! That doesn't mean you can't sell the hard bags or easy bolt on parts, but it's a good running solid bike, don't turn it into a pile of bolts and tin