Can I gain lean muscle and stay the same BF% eating a surplus?

My plan is something like this:

20/4 intermittent fasting on a strictly keto diet Hitting my macros... Etc with a 400-500 Cal surplus

What I need help with understanding: Can I STAY at 10% bodyfat and put my surplus calories towards lean gains?

Failing that, can I at least SLOW my fat gain rate to significantly less than my muscle gain rate?

I'm interested in MAINTAINING a good strength to weight ratio.... This is really all I care about...

... I am 178 pounds, 10% BF.

I strength train 3-5x per week 80-99% 1rm