The 1969 carbs are worth at least $600 in working order.
Many people want those.
Check Ebay for the prices.
They are easy to make every single adjustment while on the bike.
No lifter arms. No linkages. Less weight.
No screws to hold on the float bowl.
Only a simple clip.
Choke is a simple flip up/flip down lever.
Jets can be easily removed on the bike.
Slide needles can be changed on the bike.
On a Roadstar Adventure.