I thought I was going cheap with my conversion but...

Panasonic DX4000 complete bike (original cranks, headset, bb, seatpost, front brake, brake lever): $60
IRO flip-flop rear wheel: $130(include shipping)
Brooks seat: $50.00
MKS pedals: $22.00
Campy Clips: $7.00
Toe straps: $12.00
Dura-Ace cog/lockring: $33.00
Moustache handlebar/Nitto stem: parts bin but probably $40.00 originally
SRAM chain: $11.00
Cheapo Michelin tires: $20.00
Single chainring crank bolts : $5.00

That's about $350.00/390.00. Don't know how much cheaper I could have gone on it except to skip the Brooks saddle, keep old pedals, and build my own rear wheel? I do love the way it rides though, so no complaints.