If you can't provide them then I think we should all point and laugh at the guy lecturing us on something he himself doesn't understand.
You could do that if you want but you would only advertise your own lack of understanding i.e. make yourself look even more foolish.
I will not repeat again the process for calculating the expected cost. It was clearly put forth multiple times that the probabilities can be obtained from research into the liklihood of various outcomes. The costs are your assessments. After seeing a guy go through what Larry did the cost would be very, very high. The apparent rewards are very low. I always used Malthusian devices that were safe and effective. What would be the rewards? Also, in those days, loss of fertility would be considered a cost. I know you are all now so much more sophisticated about those things than we were. The possibility of loss of a spouse and remarriage with another lady who wanted your children would have been another consideration. I understand now that reversibility is possible to some extent and, of course, that would adjust the cost of that particular outcome.
As apparently you and others are unable to deal with this level of abstraction (thank god for the guys on here who are!) here are my numbers
Costs
E (horrible experience) 1E-6*1E20 = 1E14
E (death) = whatever the probability is (finite though very small)*(value of your life)
E (other unfavorable outcomes) << 1E14
Benefits
E (Money saved on Condoms) 0
Money potentially saved on other methods of birth control = 1*1E4 (certainty)
Placement of bastard issue, abortions etc. =1E-3*2E5
Money saved on college education of children not aborted or kept 1E-6*2E5
Your feminist sister in law likes you 1E4
Are we up to 1E14 yet?