Sorry whoever sent the message about the R-2R sip networks. I lost the
original post, but remembered the resistors. (I'm down to a one finger
keyboard operation for a while.) :(

I feel sure you will find what you are after in the digikey catalog.
have a look at the 'bourns' resistor netwoks, at Fig G, dual term.
They have a 10 pin device with zero ohms at the correct pins and what
appears to be the correct R and 2R values in the resistor ladder.
All you need it the 10K version for that DAC to PIC circuit.

Don McKenzie  don@dontronics.com   http://www.dontronics.com

PICSTART and Newfound PIC Programmers Firmware Upgrades.
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SimmStick(tm) A PIC proto PCB the size of a 30 pin Simm Memory Module.
Send a blank message to info@dontronics.com for more details.