Largest and most expensive are one and the same. Tamiya 1/32 F-14A, purchased when first released in the early 1980's. I,ve dragged it around through 3 states and a half dozen homes or more.
I've purchased *lots* of aftermarket accessories, decals and references over the years; but always worried that I wouldn't be able to do it justice. After seeing the cover article of the 1/32 F-4 in FSM a couple of months ago, I decided I needed to do something bigger than my recent 1/72. Started the rescribing project a couple of months ago, and while it has moved off the bench to finish (and start) a couple of passion projects, I am committed to getting it underway in a serious way later this year.
Good Modeling,