The Vivosun 315 cmh can be had for $150 with a 10% off discount code (you get for giving them your email.). It was the cheapest cmh all in one I could find a few months ago.
Off the top of my head I can’t remember What brand of CMH fixture I have I’ll have to look later.
I think a dimmable 315 would be the bees knees for you,150 or 265w for veg and put it to 315 for flower
Photo of brand added