Need some help on NCAA Title Hedge and the proper way

Look for thoughts on the best way to insure a profit on a huge field bet my booked offered at 150/1. Here is what I have bet to win the title this year and the payoffs.

Oregon, TAMU, Syracuse, Wisky/ND, Miami, Indiana $15/+15000

Kansas: $450/+450 plus I have them in a random team draw that would win me another $300

UNC: $550/+550

Gonzaga: $750/+3000

Maryland: $855/+1800

Virginia: $855/+1800

Villanova: $650/+2500

I'm thinking of laying the odds on UNC to win their region since I have the other 3 teams in that region at 150/1. The chalk on UNC is around -160 to win the region.

I probably win all my bracket challenges if UVA wins the title as I'm pretty sure I'm the only one who picked them in the two pools I got into. Probably would also win if Nova plays for the title as they are in my title game.

I can currently get Oklahoma at +900 and Duke at +2000 which would again get me another final four team.

I personally think the winner is one of these 4 teams Nova, Kansas, UNC, or Virginia.

What do you guys think is the best move here.

Ok let me explain a little better.

I have a field bet at 150/1 that includes all of the following teams:

Miami, Oregon, Indiana, Wisky, ND, TAMU, Syracuse

I want to insure the best value I can from that list as I don't think the champion is in that list. I have a total of $550 bet on the year with these other teams still alive and how much I get paid if they win

Nova win $650

UNC win $550

Kansas win $450

Maryland win $855

Virginia win $855

So when would you start to hedge a little more and what is the expected value on that field bet that would pay $7500

I have a total of $50 bet on that field bet. It isn't a huge amount but I want to profit off this bet.

My book is offering the following now. Any 1 seed wins the title -165. Would cover more on the major teams I am missing.

Any 4 seed wins the title (ISU Duke two that I'm missing) 14/1

Any 2 seed wins the title (nova boomer) 4/1

I don't think there is any value in those bottom two but the first one has me interested where I can put up 165 to win another 100

 there will be one hell of a party if this happens.

Thanks guys. I think I will let this run one more round then I'll get serious. I will for sure have one elite 8 team in ND/Wisky. I hope to get a couple more as it would make the elite 8 round really fun.

I personally believe that either UNC/Kansas/UVA goes down these next two days. I just hope it isn't UVA.