My take.
Wiz bro, It's a "catch 11" situation here; so to speak.
There is only way to go; the one that will sponsor you the H1b. The other companies, no matter how much they might pay you, would be irrelevant if they would not sponsor H1b. BUT, if the other interested parties are willing or making an offer 'that you can refuse, the only thing you should do is ASK, whether they will sponsor you. Of course you might wanna throw in that you would process everything, and just need supporting documents blah blah.
70k for Undergrad degree with 8-10 mths experience Merojageer? The probability of that much is close to zero. No university undergrad, and dare i say no major can land you that much with an undergrad and one-foot-on-the-door experience. Miracles do happen though.
Wiz bro, the only thing you can do is ASK. And remember, once you have your H1b, you will have time to consider other options, and with increasing experience in the field and your Masters credentials ,although in progress; I bet you are gonna land somewhere close to Merojageer's numbers and with some luck; more ;). Hehe.
Good luck.