Welcome to the forum Gary
All i did was was send an email to the forum admin team explaining the problem & within hours of my email the problem was sorted, so all credit to Haynes admin
We all know about budgets, me .... well...... read past postings & you,ll see my reputation for the bargains
Tho my own Roadster will be on the road for £3k, including IVA so it has been worth searching for bargains.
Your first question............ If you intend to fit a GRP rear tub its 36.7mtrs of 25mm box tube & 14.3mtrs of 19mm box tube ( most use 20mm which is fine),
If you intend to fit an ali rear tub then its 34.8mtrs of 25mm & 14.7mtrs of 19mm plus some round tube for the ali tub framework.
Best wishes for your build
have a good look thru the past posts & if you can,t find an answer to a query then just ask away, this forum is a wealth of knowledge in every aspect of building the Roadster.
cheers
andy