valve springs - recommendations

hi Folks... Looks like i´m a bit fucked up now...

as i mentioned above...the stock cam out of the 5.2 is trash... so i took an other used cam, which was offered my from a shop here in Germany for about 100 euros.

now as i have this in my hands, i just took measurements as the shop-owner told me he didn´t have any specs of this cam but it should have somewhat about 0.460 lift.
okay ..if so..it would be not the hottest one but a Little more lift than stock (0.432 lift)

it turned out that the cam i got from the shop, came out of the 300hp 5.9 Magnum, as i measured somewhat around 0.390 lift for Intake and a bit over 0.400 for Exhaust
refering to Ma Mopar it should read 0.387 and 0.401 for the 300 HP cam.

questions is now what to do...

spending more Money an get a
- custom grind (ouch... not easy to manage from Germany)
- one from Lunati or CompCams or Hughes
- or one of those Whiplash-Sticks

3,91 Gears
26.1 Inch Tall Tires
Stock 904 Trans and stock Converter
5.2 Magnumblock with stock Magnum Heads (1,92 and 1,6 valves)
(Huges 1110 springs - stock 1,6 Rockers)
9.0 :1 CR
true-Roller-Timing-set
Crosswind "Air-Gap"-intake
Carburator, what ever it would Need (but 600 and 650 Holley allready on stock)

no power Brakes or power steering

Electronic Ignition with Rev-n-nator-Box and MSD2-Blaster Mopar Distributor