Got through the resistance readings just fine with the $5 HF multimeter, except some readings in the 2.4K and 2.9K came out 100ohms higher. I also couldn't figure out where I would measure for the 90K-100K range on the RCA plugs, so I skipped that. After I hooked everything up to power, the fuse blew :|
It's gonna be a long night!
Your 100 ohm higher readings on the two resistors are fine, well within the 10-15% variation. I dont have the manual handy but I believe it states to turn the volume all the way down. Doing that and with meters ground/black probe connected to a ground, touch the red probe to the center pin of each of the RCA jacks, first one then the other. Assuming you used the kits included wire, the center pin would be the solder cup of the RCA jack where you soldered the red wire (for the right/red jack) and white wire (for the left/black) rca jack. First check one, then the other. This basically checks the wiring from the jacks to the volume control pot as well as indirectly checking the pot. With the "volume" turned all the way down, the pot measures about in the 90-100K range and this should be what you measure at the jacks give or take a little either way. There will probably be some variation between the measurements of the left and right jacks. That's ok, the pot isnt perfectly matched between sections.
Do you have any spare tubes of both types used in Crack? It's probably not a bad tube causing your blown fuse but it isnt uncommon. If you got through the resistance checks ok and you do have spare tubes, try those first and see if the fuse holds up. Radio Shack probably has spare fuses if you dont have any. I believe it's a .5 amp fuse, take it with you and you can match it up.
