Need Advice: Trading My 1997(?) Bianchi Alloro (Too Big) for a Smaller Bianchi Veloce

Edit: No longer swapping, just looking for some feedback on my bike.

Hi, everyone. I'd like help identifying my bike and seeing if the general Reddit community thinks this is a good trade. I recently purchased a bike in the beginning of the summer and it ended up being too big – not only was it listed wrong, but I was unable to test ride it on anything other than a trainer – I didn't get the real feel (I won't be doing that again). However, I thought it was a great bike which overpowered my dubiousness on the fit and I bought it anyway.

I rode it a few times, and it's just too damn big. Turns out, I was right. What I thought was a 52cm is 56cm! Now, I'm trying to sell the bike, I think it's valuable.

I believe I have a circa 97 Bianchi Alloro (steel) with Athena groupset, everything else is Campagnolo. There's a few nicks on the frame but the original decals are there which is why I'm saying 97. I'm asking for $900, but am willing to go down to $700. All photos except the last one are the Alloro. I've tried endlessly to search for a serial number, but had no luck.

I found someone on marketplace listing a Bianchi Veloce (steel) 53cm, carbon fork, and Campagnolo Veloce groupset, and alloy tires, selling it for $450. It's in great condition. It should fit, and it actually looks smaller. I think this price is accurate, but I don't know. The last photo is the Veloce.

Edit: He's not trading.

I really don't want to get rid of my bike, but I have no choice. Do you think this is a good swap if I accept a payout too? Is one of us asking too high or too low?

Personally, I like the retro look of the Alloro more but in terms of the modern designs the Veloce is pretty cool. I cycle anywhere from 20-100 miles, and would be using this for climbing. I'm on Strava and enjoy competing with myself for fun, but that's it. Sometimes I participate in local races or routes, but nothing professional.

He didn't say yes. I'm also just trying to gauge the value of my bike. Thank you!

(We can be friend on Strava!!! https://www.strava.com/athletes/45888828)