10agw +10agw=7agw? need some big Banana's

just put new banana terminals on my 10 year old Acoustic Zen Santori shotguns. went with Audiquest 500 series connectors for the speaker/bi-wired ends. the problem is they won't fit/work on the amp side where the wires are doubled up. pretty beefy wires at 10agw per shotgun/bi-wire. looks like i'll be needing banana plugs that can accommodate 7agw? (10agw+10agw?)

my local shop who installed the Audioquest 500's on the speaker/bi-wire side doesn't offer anything that will work for the doubled up amp side. been looking online and see very few option for something this size.

two questions.....

1) can anyone confirm my math for the required size needed?? 10agw+10agw=7agw?

2) then possibly point me in the right direction to find some high quality banana's that will fit/work?

(not looking for replacement spades. just interested in banana terminals)

thank you!
thanks for the ideas to all. glad i posted.

mitch2...liked Douglas Connection.  never seen/heard of the site before. great stuff.  had a few nice options available. went with these......

Kijanki4....agree/you're absolutely right about being careful. these cables are monsters with different shaped strands and lots of them. gonna take the above Furutech bananas to my local shop and have them put on right and re-wrapped. $25 or so is a small price to pay for the tedious task avoided and peace of mind that it was done correctly

should be done with this pita speaker cable rehab next week. spending $300 redoing all the tips seems (is probably) crazy but i really love these dam wires

Knukonceptz sells banana's that will accept 8 guage wire I have them and they really do others I tried that claimed to  didn't work.