Aires Quickboost has released an easy set to convert the AMK 1/48 Aero L-29 Delfin to the L-29R reconnaissance version. The major differences were the camera bay that fits under the forward fuselage and the installation of semi-permanent auxiliary fuel tanks on the wing tips. The supplied instructions identify proper placement of the new Quickboost parts. If you have the older Planet Models 12448 resin model kit of the Aero L-29 Delfin, this set will probably work on it as well, although I do not have that kit to test fit.
Quickboost has molded the camera bay and the auxiliary fuel tanks perfectly in light tan resin with no apparent bubbles. The Quickboost auxiliary fuel tanks and camera bay are supplied on two resin sprue with thin resin attachments to the parts that should minimize any cleanup.