You need very little to cement the parts - place the parts in position and touch the brush to the joint - let capillary action draw the cement along the joint . Don’t hold the parts in place with your fingers or tape - anything that the cement could run under and ruin the part . Experiment with joining clear sprue to color sprue . Problems will arise when the brush has too much cement. If you do get cement on the clear parts in unwanted areas it can be polished out after it has hardened but there may be loss of detail due to the polishing.
All of the clear parts on this build were actually sanded down and polished out from the inside to a more scale thickness and cemented with Tamiya Xtra thin .