IIWM:D I would mount the 'shorty' tailstock 'below' the tilt base(where it normally goes;)) so it is removable, and add a 'leg' for the extension.
That assumes I unnerstan the stuff above(I be suspicious of gthat since I do not unnerstan why ye be drilling out the tiebar threads). All thread and turnbuckle????
Maybe I be orienting this stuff differently from you. I was thinking the shorty drill press became the driven end, and the extension the tailstock. I also considered using the drill press as a shorty lathe.
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
