Architect / Hebrew / Arabic grinds are tricky: for maximum effect, they need to be ground fairly flat, and placed precisely on the paper. More than for cursive / italic / stub grinds, the angle at which you hold your pen (relative to the page) makes a huge difference to the width of the stroke you lay down. I have one of Bobby's (office_supplies_pen on eBay) architect grind, and a "bent nib" on a Delike Alpha, both of which have a more pronounced "architect-grind-like effect" - they're not a bad compromise if you want something kind of "off the shelf" - but for the real deal you need to get a nib custom ground.
I've really enjoyed the nibs I've had custom ground for me to an Architect grind by fpnibs.com in Spain - and compared to the American nib customisers who provide a similar service, their prices are very reasonable.
I haven't tried this on a gold nib - not convinced the added expense would be worth it. Just check out the range of nibs fpnibs.com offer, see if they've got something that would swap onto an existing pen... and drop them a line!