I'm not sure on that engine. I saw a Mel Miller 951 advertised last month for $2500 and he seemed to source a buyer. Normal no core 951's (rebuilt)are advertised at $1500 or more.
The twin pipes maybe $800 as a starting price with all the springs and hardware. I've never heard of that ignition before but MSD would be $200 to $600, just not sure what all yours comes with.
The UMI steering system should bring you $400-$500.
I saw a Novi fuel/air separator sell for $200 but normally those systems are more around the $100 range.
A couple hundred each for the pump and the egt gauge. $750 for the Novi carbs, $200 for the seat but it is tough to ship, $200 for the grate and sponsons.
This is my best guess. Lets see what we came up with.........probably like $3000 if you wanted to price them on the lower end to sell.