[Elecraft] Off-Topic - Antenna element repairs

[AE4PB at carolinaheli.com]

I have a vertical antenna to repair and install that I believe is the same
as  or close to a hi-gain AV-18HT.
https://www.hy-gain.com/Product.php?productid=AV-18HT. 
The main antenna vertical was cut so it could be taken down. I purchased it
used in hopes I could repair and install it. 
I have two different places that require repair. Purchasing new parts for
the element appear to approach the cost of an entirely new antenna. 
I'm thinking of three different methods of repair but lack experience. 
1. I can braze the elements using aluminum brazing rods and flux.
2. I can get them welded back together but am concerned that the tubing is
very thin.
3. I can try to find tubing of sufficient size to put inside and then
pop-rivet/braze the pieces together. 

What do you folks suggest?

Thanks in advance. I've collected about a fourth of the wire necessary for
the radials. 

Jerry D. Moore
AE4PB