Can I Mix Types Of Chain?

[LA-Sailor]

Hello everybody,

I am building 200-300ft of 5/16" anchor chain for a South Pacific voyage. I have been looking for used chain but it is very hard to find 5/16" continuous 200ft. I'm getting quotes for new anchor chain at $3.75 plus tax... upwards of $800! As I search Craigslist and other realms, I'll find "40ft of G4"... "100ft of G3"... "70ft G7"... it's so hard to find a continuous 200ft segment, used. (All 5/16" of course)

SO- does anyone have any experience or thoughts with "piecemealing" a 200ft segment made up of different chain grades, all 5/16" using Sealinks? I assume my Maxwell VW700 windlass will tolerate the minor discrepancies between G3, G4, G5, etc.

I understand anchor and chain are cornerstones to safe cruising. Do I NEED to spend $800 new for something that can equally be achieved safely and more economically for around $300?

Any thoughts welcome- thanks!