Go for the Linkert carb, then you wont have any problems starting it and it will run just like a dream. Might be some small fires every now and then but you get used to it.
I am seriously contemplating the same. A fine tuned Linkert on a Pan has a certain nice sound I've heard. So I think I'll gove it a go this weekend and save the double trouble SU for the Flattie project.