Hi everyone, I am a total newbie to this but hoping the more knowledgeable folks can help me figure this out. My husband and I are on a flight VIE->ORD (OS65) on 4/23 in Economy class (W). Our itinerary was split into two because my husband changed his name recently and the original itinerary had his old name. Just mentioning it because I have to do things twice. I am hoping to score business seats for us since it's a 9 hour flight, but this is my first time bidding so had a couple of questions if anyone knows the answers...

Expertflyer shows the following in terms of flight availability (bolding what I think are business classes)
J8 C8 D8 Z8 P0 | G9 E3 N0 Y9 B9 M9 U9 H0 Q9 V9 W9 S9 T0 L0 K0

We don't have status; We have a miles and more accounts but when the itinerary was split, mine seems to have been scrubbed from the itinerary and my husband's is not on his because it's a separate process to change the name on the miles and more account and that's still underway (his still shows the old name). Mentioning this in case it's relevant.

On to my questions:
1. I read somewhere that even if I bid, it's unlikely to get accepted because you can't jump two tiers (economy to business with premium economy in between)
2. I bid 510 EUR for both of us separately. Is it possible that only one bid gets accepted in this scenario given we are not traveling together in the eyes of Austrian staff? We have the same last name but we have that spit itinerary. I have a screenshot of what plus grade shows as our predictor (a half circle divided into 5 pieces, and the little arrow is slightly into the 4th piece) but I can't post as I am so new that the forum doesn't let me post photos yet.
3. Is 8 seats in business almost 6 days out a good thing or is that typical? Wondering if OS would prioritize status folks for upgrades vs these bids. Anyone have any data points for that?

Grateful for any insights people have!