Here's a site for FE engine specs:
http://web.ics.purdue.edu/~stanchfi/specs.html
410 is the same bore as 390 (4.05) with 3.98 stroke (428 crank)
I used Diamond on my build and was pleased with the quality.
Here is the link to Diamond:
http://www.diamondracing.net/FordSection.pdf
The pistons you need will depend on your over-bore, and desired compression ratio etc. They do have some overstock which may be in the size you need and could save you some $$. If you contact them they will provide tech & purchase info.
take care,
Mike