Thinking how to tape myself:
Put on nylons and thin tight fitting long sleeve shirt with turtle neck.
Tape only one vertical half of body at time (front then back), extending tape about an inch beyond halfway mark (at side of body). When done (with one half) mark side vertical line with sharpee cut off clothes beyond tape.
Repeat exact as above and do second vertical half of body.
Cut two pieces on marked line and join.
Stuff, etc.
I think it will work. I can intuitively feel where my vertical line would be to accurately mark with pen. When joing the two halves I can compare with real measurements of my body.
When using mannequin I can use tape to hold fabric to mannequin since pins won't pierce tape.
Will let you know if I succeed.