Determine TOTAL BASIS in Traditional IRA for TT IRA information Worksheet (2 IRA accounts)

How much would the TOTAL BASIS in two Traditional IRAs below be?

Traditional IRA-1

Started with 7 ($2K each/ yr) Non-Deductible Contributions years 1994-2000—but only 2 of them (totaling $4000) were reported on Forms 8606 by tax preparer-accountants for the respective tax year and carried forward.

Traditional IRA-2

Initially funded from liquidation of a Qualified IRA-type Annuity of $120K

$60K was converted from IRA-2 to a Roth-IRA, where the $4K (Total basis in IRAs) was applied to determine the taxable amount of $56K for the conversion on Form 8606.

The other $60K remained in the Traditional IRA-2

There has been no other conversions, distributions, contributions, or withdrawals to either of these 2 Traditional IRAs since.

 

How much would the Total BASIS in Traditional IRAs remain to carry forward?

Was the $4K of BASIS documented on Forms 8606 depleted in the 2010 Roth Conversion?

What could be done regarding the $10K of lost BASIS in IRA-1?

Thanks