One of the goals of the Mini-BDM-Pod was to make it inexpensive to build. This is the sum of my material costs:

Item Unit Cost per No. of Units Supplier
1 5 10
10 PCBs (EUR 7.70) 7.70 EUR 1.54 EUR 0.77 EUR Seeed Studio
10 Enclosures (EUR 9.72) 9.72 EUR 1.94 EUR 0.97 EUR Seeed Studio
Shipping (EUR 5.83) 5.83 EUR 1.17 EUR 0.58 EUR Seeed Studio
MC9S12XEQ512 (samples) 0.93 EUR 0.93 EUR 0.93 EUR Freescale
MAX3373 (samples) free free free Maxim
FT232RL 3.15 EUR 3.15 EUR 3.15 EUR Reichelt
Discrete components 2.67 EUR 2.67 EUR 2.67 EUR Reichelt
Shipping (EUR 5.60) 5.60 EUR 1.12 EUR 0.56 EUR Reichelt
Screws (EUR 2.51/50) 2.51 EUR 0.50 EUR 0.25 EUR Ebay
Nuts (EUR 3.45/100) 3.45 EUR 0.69 EUR 0.35 EUR Ebay
Shipping (EUR 1.50) 1.50 EUR 0.30 EUR 0.15 EUR Ebay
 
Total unit cost 43.06 EUR 14.01 EUR 10.38 EUR
53.16 USD 17.30 USD 12.82 USD

In other words, it cost about 43 Euros (approx. 53 USD) to build the first Mini-BDM-Pod. The second one and all later ones only cost 6.75 Euros (approx. 8.30 USD). If you intend to build larger quantities of Mini-BDM-Pods, you’ll also have to consider the regular price of the MCU (MC9S12XEQ512) and the level shifter (MAX3373).