debs

This we found in my Brother in law's home while cleaning it out after his death.
I believe my MIL hand pieced it, but don't know for sure.
Any way, I have no clue as to this having a pattern name.
The triangle pieces look to have been done earlier with an off white fabric & most of the blue white border was added, mostly hand pieced, later.
I would like to finish it, but asking for suggestions for a border/borders, maybe a miniprint with the 3 colors, maybe stars.
What do you all think?
Also I want to have it long armed, so will be looking for someone to do that for me. What range of price and I looking at?
It is @48x70 inches