New Amiga Motherboard construction

[Yoji]

OK - Apologies in advance for what will probably be a very silly question....

I am an Amiga fan.. but MANY Amigas have been destroyed by RTC batteries leaking and corroding traces which ruin the Mobo's.
I saw how easy it was for Dave of EEVBlog to create and get a short run of (an admittedly simple board).
So.. the Amiga Mobo's are well documented (and someone probably owns patent).. but aside from that..
with current technology.. how easy would it be to reproduce these Mobos?  that's a 2 stage question...
1. Simple Mobo.. no components at all.. just the Mobo?
2. Same Mobo as 1.. but with all SMD components populated? i.e. norm Caps, resistors etc.. NOT the custom chips.. they would have to be removed from an old Mobo and populated on the new board (so lets say for all custom chips.. a socket is in place.. but no custom chip).
If you not familiar with Amiga.. here is a link to details of the A4000 Mobo.. give to a feel for complexity.

http://amiga.resource.cx/photos/a4000,6

So my questions..
1. how crazy Is this as an idea?
2. ROUGHLY.. how much might yo be looking at for a 1000 piece manufacturing run? (for option 1 and 2 above).

Thanks in advance for humouring me
Cheers
 

[eugenenine]

There is a german amiga forum that is doing this already.

http://www.amiga.org/forums/showthread.php?t=72246

I started redrawing the 2000 schematics in kicad thinking maybe someday I could make a board.  I'd love to remake the custom chips in fpga's, each one separate instead of all combined into one like a couple of the other projects.

[Kleinstein]

I just cleaned my A4000 from leaking battery. Initially it acted up (like memory problems), but after crude cleaning it is working Ok.

So I don't think it is really worth doing such a big board. Unless the computer sits in wet storage for a long time, chances are that just cleaning the board and maybe a few bodge wires would be enough to repair such a damage. AFAIK the board is only 2 layers and memory timing was not yet that critical. Today even a simulator is an option of one really needs too.

The Amiga was a great computer at it's time. However even back than, the graphics hardware got outdated rather fast. The really good part was and still is the very responsive GUI, not the hardware. But even the software is now outdated in many aspects - though at the cost of code bloat. So the Amiga now is outdated - HW and SW wise. It is still a good example to what is possible with limited HW. So today's programmers really should have a look at it to learn from and get ashamed that they need more then 100 MB for Win10 or a current Linux.

[wraper]

AFAIK the board is only 2 layers and memory timing was not yet that critical.

Nope, it's 4 at least 4 layers.