I enjoy citrus trees... and see NO problem with “containerizing” them.. I just personally don’t grow them well.
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I've kept citrus in plastic whiskey barrels for 12 years (zone 9a )... just sayin.
Absolutely! They like it in zones like this! I’m in 5a, and I know people with enormous lemon and orange trees thar live 6 months indoors.. just window light.. i PERSONALLY suck at citrus.
This is a mandarin orange.. sprouted in March.
As to the “Go for it for the base and live with flawed trunk inquiry.”..
...if I had the means (disposable income) I would buy it and JUST use the rootstock.. develop some of those little chutes and see what that top is grafted TO... this would be a long term project, balancing/transitioning to your new canopy..
If I was considering using the top integrated into my overall design, as it looks to be a fairly pricy investment..... I personally might pass.