Only 40 votes to to defeat amendments? if so then the most these will do is stall until the elections...and that is a good thing if it works...however can't they stop this if they see the republicans are using this as a stall tactic?
I dont mean to depress you further but offering amendments is unlikely to stall this bill for long, unless they find something in violation of reconciliation rules. And even then the cheaper Senate bill is still the law and Obama had his victory that cannot be removed now.
The purpose of the amendments is to force a record of at least 40 democrats defending very unpopular side effects of the bill for November elections. A more optimistic goal is to scuttle the whole rec bill so house dems have to live with the senate bill they hate, but passed with Obama promises.