Camshaft dillema

OK some history of what and why:
Last year before I put the car in storage for winter it started running a bit wierd and lost power. I wanted to inspect this before I took the Duster on the road this spring.
I took the covers off and realized that something is wrong with last lifter, I could push the spring deep in it with pushrod.
I took the intake off and saw that the cam is too much toward back of the engine and lifter is almost eaten thru, with hole on the bottom of it.
I took the timing cover off and found that cam sprocket is loose on the cam, the bolt that was in there I took out with my fingers, dowel pin in the cam was all smacked, the hole for the dowel pin was oval and timing chain was just on one row of teeth on the sprocket!
Not a nice view... I had to take the oil pan off to get the metal shavings from there, also had a chance to clean it.
So next I took the heads off to see how are things there. All exhaust valves were garbage so I gave both heads away to be reworked with new exhaust valves with 3 angle valve job like I had before. I have Wiseco forged flat top pistons, all pistons have small hit marks from the valves hitting but they seem intact.

So now the heads are waiting to be installed, gaskets and all the stuff is there to put it back together. I ordered new cam(identical as I had) lifters, some brake-in lube etc... I waited for the parts to put it back together this weekend and all was good till I opened the box with parts. My jaw dropped when I saw the cam... So I tried to save the day and bothered you guys with all my questions.
This engine was great before this happened and I was more than happy, car was very quick, sounded great etc.

As for brake in procedure I was thinking to use stock stamped rockers set, as final set I want to keep the adjustable 1.5 rockers that I had on it before.

I checked the springs and they are single with dampener, but the place that did the heads measured the springs pressure and it seems mine are harder than what Comp advertized on the website: installed height is 1.880 seat load is 130#@1.880 and open load is 350#@1.360, coil bind 1.175...
I have 452 heads that are ported to flow 280.11 @ .500 lift.

I did not put this motor together but it worked very very well as a package and made my Duster all day low 11s car, with shot of nitrous would be in 10s... I was thinking to put procharger in but well my plans changed to make it run instead.
As I am cam stupid I looked for advice... Already ordered the cam I had before, hoping this time I will get what I asked for.
My car is very exotic here, there are like 5 Dusters in my country and only two are big block.. Getting anything for these means you need to be patient and be prepared to pay almost 300$ for a flat tappet cam with shipping. All the prices you can practically double which sucks.