You can shoot for a lighter side of EI, leaner.
And also have a decent fish load.
Dose the same amounts of traces, but light on the macros.
Use the ADA Aqua soil.
Do the 25% WC's.

There are other options...........

One is obvious.

You mention that you would rather garden than do water changes etc and that you do the water changes the old fashion way: buckets.

With tiny tanks, this is fine, but a 240 liter tank should use a Python auto water changer or you may use your own DIY version, you should not require any buckets for tanks!

This is a simple device that will save you both time and money and a lot of work.

A simple hose that drains the tank while you work and clean it, then switch the hose over to the cold/hot tap water to refill. Have RO? Use a powerhead to pump the water back to the tank etc.

A few very simple things will resolve the water change issue for you and reduce the work load greatly.

Then you can still do the large water changes.

This will work well and only cost the hose $ and the adaptor to fit it on the faucet. Hoses eg garden hoses come in 25,50 and 100ft lengths so you use them about anywhere in the house.
Unlike the bucket methods, refilling/draining is done fairly slowly ands you can work on the tank when the water is low which is the best time anyway.

If you use garden hoses, runn the tap water through for a minute or two prior to refilling.

Regards,
Tom Barr