Good for you FJ it will only increase in value but for you the value is in the memory of your younger brother. It's been a while now since my older brother past away suddenly at the age of 43 in 1990 and I still miss him dearly but you cannot dwell to much as the wheel of life well it just keeps turning.

When you have finished it it would be nice to see the time line I hope you get many years of enjoyment from it apart from the engine note the Z-9's had the distinctive clutch whine which I thought was pretty cool