It's hard to say. I have an FB friend who is younger than me, very religious, and she really likes nice things. We get along great but only talk on the phone. She knows I am atheist. We have not actually met. In order for us to get along as a couple I would need much more money, OR to win the lottery. LOL Then we are creatures of habit. I am comfortable with this woman but the situation reminds me so much of how it was with my wife of 12 years. I hold back because I would be setting myself up for the same thing again. Maybe the same failure.
Keep in mind that there is no time limit with grief. Do not let anyone rush you into another relationship in any way. If in doubt just tell these men you need more time. If they are not for you they will fall by the wayside.

Consider also:

My boss' dog is 11. It just got stem cell treatments and is frolicking like a puppy. All this "oh I don't have much years left" stuff needs to stop with people. People are already and going to be living a LOT longer. Money won't be an object. Youll see

It's all a matter of what and where your values are. How can anyone not in your position give you any advice? What you are going to have to do is weigh your integrity against other things you think are important to you, then make a decision. If it's a bad decision, it's another lesson learned. If it's a good decision, then roll with it.

There booth wrong for you. its your one and only life