Aftermarket Six Pack Questions?

Without reading anything except the first two posts...

Edelbrock is not making the intake anymore.
Holley carbs can be purchased at Holley.com
The 340’s rear carb has a tab in the passenger side barrel for fuel distribution but not on any other carb.

I myself have a mix of carbs for my set up since it will be a stroker of 400+ cubic inches.
The other differences in the carbs is jetting.

(I just read the entire post.)
A FI 6 pack is an interesting idea. There are several companies to choose from.

I was lucky because I found a dealership going out of biz. They were selling all of there stock stupid cheap just to get rid of it. Have a bank roll ready to press “Buy now” just incase you roll across something to go to pass up but make it as nice of a part as possible since rebuilding carbs is expensive and intakes have tripled in price if not more. SB 6 pack intakes are the new MoPar gold.

The other ridiculous cost is the air cleaner base. I purchased a fiberglass unit that wasn’t worth the price but to fix it was cheap and easy to a degree a 5th grader could do it nicely. Use the K&N filter because the paper air filter is also a Gold and Platinum encrusted item.

I know this topic has been beat to death here. But let's kick the corpse down the road a little more.
I keep having this recurring dream (nightmare?) of seeing my finished (340) engine topped with a six pack induction setup. Stupidly expensive costs aside, it seems every time I begin fantasizing about this and price-checking, the scene has changed. One minute Eddy is making the SB manifolds, the next they are not, and they are "unobtanium". Same with the carbs. Right now, the only one selling stupid-expensive center carbs (new) is Classic Industries. Outboard carbs are nowhere to be found. Most of the used systems I come across on eBay are ridiculously priced and/or incomplete, or look like something the cat dragged in and are almost certainly NOT unmolested. I'm really leery about stuff like that. I would actually prefer to bite the bullet and spring for new components...if I could find them. So anyone got the inside scoop on availability? Can these components be purchased direct from Holley and Edelbrock? Are the big block carbs (way more available) too different that they can't be adapted? Help me get some sleep, please!