Well, sometimes a hobby project can turn into a nightmare or a rainbow--you almost have to have covered area for long-term projects like fixing a roof.
Keep in mind what it would be worth in perfect condition so you don't end up putting more into it than you can ever get out of it. But then there is such a thing as sweat-equity...and pride in doing your own work.
Wish you much luck it you take it on.
2016 Tiffin 40 QBH
2015 38RSSA, traded
2005 TK3 #1869, 10 yrs of memories,
2017 F450 KR--one more Ford is it
2009 F450 4x4-died; 2010 F450-retired