No secondary master cylinder in stock un august. How do I block the brake hose?

Good day,

I saw that on my 2004 VFR 800 the secondary master cylinder was leaking today. Honda Canada has none in stock until August. So for now, what I would like to do, is to bypass it. Or block it. Is there any safe ish way of doing it? I was just going to replace the banjo bolt with a normal one so no fluid can go. I would loose one the use of one piston on the back.

It is either this....kinda redneck fix, keep full use of front brake and loose 1 out of 3 piston in the back, or buy a new bike, or not riding for half the season.

I'm leaning on buying a second vfr 800 of the same generation for parts. Parts are starting to be difficult to get for it.

 

So the rebuild kit is out of stock?

PISTON SET, SECOND MASTER CYLINDER
45620-MBG-026

 

Thank you! That shipping rate + duty is insane. Better than a redneck fix.