Here are the prices thus far. I'm trying to get things lower but the exchange rate is horrible. If you're not in the US, you might as well just buy them direct - likely would be cheaper given the $1.46 conversion rate right now.
PN DURATION ENGINE RESALE
1300517 308/309 M20 $352.64
1300519 264/264 M20 $273.16
1300525 273/273 M20 $273.16
1300527 283/283 M20 $273.16
1300528 293/293 M20 $273.16
1300530 296/296 M20 $352.64
1300533 272/248 M20 $273.16
1300724 284/284 M30 $273.16
1300725 299/299 M30 $399.39
1300726 305/305 M30 $399.39
1300727 314/314 M30 $399.39
1300728 314/314 M30 $399.39
1300732 318/318 M30 $399.39
1301411 257/257 M42 $637.10
1301413 269/269 M42 $637.10
1301520 298/290 M42 $686.09
1301522 260/242 M42 $724.51
1301007 257/250 M50 $1,310.41
1301008 269/257 M50 $1,310.41
1301009 275/269 M50 $1,310.41
1303309 270/266 S52 $916.61
VALVE SPRING PRICES
M20, M30 - $157.08
M42 - $209.44
M50 - $314.16
S50 - $426.36