Hah-hah, I’m also confused as hell by this election, and your prediction is very close to my own. Maybe we confused people know something the rest of those zombies out there don’t know. ^_^
Speaking of guesses...
(For the record.)
Betfair:
“Consider the battle for the House of Representatives. Fivethirtyeight have been very strong about a Democrat majority since unveiling their model and have become more so over time, currently rating it 86% likely. By contrast, Betfair odds of 1.60 imply a mere 62% chance and have at no stage bettered 71%.”
https://betting.betfair.com/politics/us-politics/us-mid-term-elections-betting-odds-and-analysis-301018-171.html
At Paddy Power, the over/under is Dems win 232 seats
https://www.paddypower.com/politics
(I think I read that right!)