Take it from a welder, you really won't find anything 'economical' when it comes to having those made. In each case they are 'custom' built to order. The only way around that is have the factory jig. Most shops charge between $60 to $100 per hour plus materials. Your best bet is to find a local home-based hobby fabricator (someone who does not run a brick-and-mortar shop) who has a tube bender. You should only be using 1 inch stainless tube, most people will have that common size die for the bender. Look for someone who is into making tube chassis for race cars and such; it does not have to be a 'marine' shop. He will have to set it up on the boat and weld it in place; without the factory jig there is no other way to ensure it will fit. Metal like to move when you weld it, and it will move a LOT. Try putting out a want ad on CL. Good luck!
This is good advice, sort of what I am already trying to do. I put in the post to find if anyone else had discover a suitable go-around by knowing who's who, you know. Lippincott Canvas, right in the yard, does rail bending; I'm asking him to get involved as well. The reality is that though these rails I want are simple, the back and front ones include some pretty tight bends that might be beyond the average handyman who doesn't do this all the time. My cousin Rick bends tubing too but doesn't happen to have a tubing bender at present (and if where he works gets involved, it'll be a formal job $$$). I also know a guy along the Shore but we had a falling-out on how he wanted to be paid for welding my mast step and I lost my parts, had to make them over, and got them done round the corner with a first-class job after all that.
The bow rail is only two pieces, each a side of the assembly; I will tack in a piece of angle between them and maybe just bolt it (for the step-through/seat). The stern rail is pretty standard but for its forward legs' bases. The other one is the fixed-dodger rail, made like the bow one in two pieces and then tacked together with stock fittings. This design enables me to do the 'ugly' fits and final assembly.
I agree with you about 1" tubing but most pulpits are 7/8" which would be okay with me for this. The forward legs of the stern rail have to be 1" to socket into (or onto) the deck-mounted foot (sawn-off end of old coaming-mounted stanchion) and to accept the 7/8" tubing of the deck crane (like the Forespar one only cheaper). Nothing special there-- McMaster-Carr have the correct sizes in stock.
I admit there are a lot of unique ideas in this setup and I will post photos when they're done. Thanks for your thoughts.