Hi Chester,
Welcome to the forum. The transfers you require are available from the London Douglas Motor cycle Club, but you need to be a member to access their services. Regarding the correct section tube for the rear stand: if this is of oval section, it can be produced by running round tube through a set of rolls - i.e. a swager or similar, to generate the required section. Several Club members have done this successfully in the past.
Also, if you include your location in your login details, you will probably get better assistance that is more relevant to the country in which you live - at the moment you could be anywhere in the world!
Good luck with the restoration,
Regards,
Eddie.