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How to price? Bent Audio fully balanced TAP-X + Raleigh Audio Extreme Linestage

So I have an unfinished over-the-top preamp project that I never finished using kit that is now un-obtanium. What is needed left to do is mount the Raleigh boards to the Bent chassis and wiring it all up. I am not sure what is a reasonable price to ask for this and would appreciate feedback regarding pricing, hence this post. Not sure if that is onside or not. Of course, I could bust out my soldering iron and wire it all up and sell it complete, but I don't seem to have the time and I am a bit unclear the best way to handle grounds when merging the two kits.


Bent Audio full balanced TAP-X with Slagleformers
This is loaded version of the Bent TAP-X, which has four Dave Slagle autoformers inside, fully balanced input to output. It has 4 balanced/2 single ended inputs, 2 balanced/2 single ended outputs and operates seamlessly switching among them. This one also has the Larger and Deeper Case, which permits a DIYer to add to it**. The TAP-X provides 1db steps and +7db gain, though passive. It comes with the very classy and heavy aluminum remote that switches all front panel functions.
Paid $2500 in 2014

**K&K Audio/Raleigh Audio Extreme Linestage Premium Version Kit with amorphous core iron, 6H30Ps, upgrades caps and resistors.
Kit includes Premium Line Stage assembled and tested by factory. Lundahl LL1674 amorphous core Output transformers, Lundahl LL1676 amorphous core input transformers (assembled on their own board), Lundahl LL1683 power transformer.

My kit does NOT include Analog Input Board and Select Switch, 12V Relay Power Supply, the Stepped Shunt Attenuator, nor the Raleigh Chassis from the Raleigh Kit as these tasks are all provided by the TAP-X above.

Paid $2000-2500 back in 2014.
I still have the instruction manuals for each, if I can locate them. I have the Schematics of the Linestage and PSU as well from Dave Davenport. What is needed left to do is mount the Raleigh boards to the Bent chassis and wiring it all up. Also, the top plate of the bent chassis will need some holes to allow the Raleigh kit to breathe if you want to keep the lid on. I bought this before a major move and then never finished the project before moving permanently into the full active speaker setup (JBL M2s) which doesn’t require a preamp.

http://www.bentaudio.com/index2.html

http://www.kandkaudio.com/line-stage/

I can take photos of all the above, but this is more a pricing thread.
 
I am getting some suggestions to keep them separate. Do you agree?

The Bent would then just need a day of finishing the wiring and it can be sold complete, but the Raleigh kit would need more parts then to finish (source selector, volume controls and chassis).
 
In case anyone was interested in photos. Got home super late last night but still managed to snap a couple.
 

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