Drifting slightly off-topic:
g2b you should build that into an UMP clone then sell it. If you do it part-by-part you will take longer, but you can get it done for relatively cheaper since you can decide when to buy the next part.
I have a huge pot we can do the dye job with RIT dye. That's what I used for my G36 conversion:
http://pookieweb.dyndns.org:61129/G3...d/coloring.htm