Winter storage advise?

Storing with a full tank of fuel reduces the opportunity for condensation and rust forming at and above the fuel line. The disadvantages are mostly due to the stuff in today's pump fuel, ethanol being one of those ingrediants. One issue is the varnishes that form. It looks like stabil may overcome that. I didn't have that sort of luck back when I tried it years ago but it sure looks good in the pictures above. Of course if the garage is heated and dry moisture issue will be less of a concern.

The other issue is when trying to drive on December fuel on a hot day in June. You'll wonder what's wrong with the car, especially once it gets hot! Worse with a modified engine and no vapor controls, but its never good. So if you can get it out in say March, or maybe even April since you (OP) is in Mass. you're probably OK. If that's not going to happen, then get some real gasoline to use as storage fuel. This is not cheap but nor is siphoning off 5 to 10 gallons of 6 month old winter fuel. I assume a full feedback modern FI vehicle can burn the stuff out of season but I don't own such an animal so have ended up giving it away.