Whats with the attitude you keep giving me? don't want to sound like like a twat to you and i do appreciate the time you are giving to help but i didnt ask you to make or do anything for me. i have said many times i am going the aluminium profile route because either way its going to cost me around £500 for the material and then there is no way someone will do that frame for me for under £500 and i don't blame them. the design you shown me looks alot more simple then mine and you said to use 80mm instead of 90mm so that should of been cheaper. The guy who has quoted me is off facebook that got recommended to me, so i sent him that as a rough example and he quoted me £1580 without the extra bits i would of added on. like i said earlier because im not as skilled as most of you by the time ive payed someone to do it and bought all the material its going to cost me almost as much as what the aluminium profiles is costing. the whole point of going steel is because its cheaper and i know its more rigid but the aluminium also has an advantage for resonance so either way i choose its going to cost me the same or maybe a little more.

again i don't mean to sound harsh but i didnt ask you to send me any files or do any work and i already said a few times im going with aluminium but you keep posting with more steel advice :)