Thanks guys, a bit of digging shows that it may well be doable, as the Braz resin fuselage has cutouts on the underside matched (sort of!) to the Trumpeter wing joins -
https://i.ebayimg.com/images/g/8JgAAOSw ... -l1600.jpgThe Revell Bear kit has the fuselage split top and bottom, not horizontally, and the lower wing is continuous across the join, meaning the centre section can be cut to match the resin, and the upper wings have standard tabs which can simply be trimmed to match-
https://www.scalemodellingnow.com/hnair ... -tu95-bearA similar approach pre-Trumpeter kits. The conversion includes a (strengthened) nose gear leg and the extended flaps -
http://www.hyperscale.com/galleries/2002/tu114jt_1.htmI've bit the bullet and purchased the conversion, but at my building rate it'll be finally completed by one of my distant relatives in their settlement on Mars!