Need slant heads for OHC project

I like the idea of a OHC slant six. I read about the prototype from the 70s and thought it was cool. I'm guessing you'd just need a way to put cam bearings up top and put a longer timing chain/ belt up to the valve cover somehow plus a whole bunch of other things I know. Would you want to take this a step further and add oil activated variable valve timing and find someone to make a new cam with a third lobe for each cylinder? That would be ultra cool. I'd buy the hell out of that.

Yeah basically going to build a set of brackets and lift the rocker assembly and use longer valves.

Variable Valve timing is way out of budget for me. If I was going to go that far id design a brand new 24 valve DOHC head from scratch at work, have it cast from aluminum, then machined to spec. Then I'd definitely think about VTEC. Again, this is the first stage. I'm definitely on a budget since I'll be $5,000 into my engine without the OHC setup. I'll definitely consider it depending on the results I get from this project. I appreciate the idea