How much did it cost?

Yes, well:

New steel, bought at Rajesh Hardware: 2475 Rs.
Nuts and bolts, from Kankai Hardware: 342 Rs.
Bike Parts, incl. a bottom bracket shell, crankset, left crank arm & 2 freewheels: 1390 Rs.
4 Bearings (6305?): 250 450 Rs.
Steel Drum: 1100 Rs.
various metal from the same kawaDi: 15 Rs.
Various shop charges: 435 Rs.
Used steels and 2 old bearings used for sizing: 120 Rs.
Recycled steel: 640 Rs.
Other small parts: 20 Rs.
$
Total: 6987 Rs. above, but WN paid 6787 Rs., about $101.29

In kind donations from Aaron and myself:

Nuts and bolts: 110 Rs.
Welding charge at Sakhu: 650 Rs.
Small parts, bicycle: 185 Rs.
Others: 463 663 Rs.
(plus 200 Rs. toward the bearings, above)


Amount: 1408 1810 Rs.


Total spent: 8195 8595 Rs.

*

Caveat: I am not certain that this accounting includes the cost of the 100-liter plastic inner drum, which I recall as being 560 Rs. If we need to include that as well, the cost becomes 8755 Rs., or about $130.60.

Edit: I found the last 3 receipts, for the plastic inner drum (bought new, 550 Rs.), the real receipt for the bearings (450 Rs. instead of 250), and 200 Rs. of miscellaneous pieces.

The cost now becomes 9145 Rs., about $135.48.