Ways to reduce drag.

[Single stage to ocean]

I know about service bay tricks(hides propellers in them when shut, useful for my eve ssto) and the fairing trick, as well as trying to minimize the amount of nodes, eg, on motors, right clicking them in VAB and changeing the amount of nodes. I also know about wing incidence. What is the optimal angle for something like an eve ssto, designed to go fast in Eve's thick atmosphere.?Any tips help, except egrigious exploits like heatsheild wings or kraken drives My concept is 7 of the largest kerbodyne tanks, with 4 big-s wings for every tank(at 10 degree incidence), each filled with lf, so when the lfox runs out i use lf nukes. 5 nukes power it on exhaustion of lfox. Payload is 1 ton, and maximum mass of 650 tons. Full reusability. Note, this is in the kerbalism mod, which only allows 1 ignition for mammoths, and ~14 for nukes(also no isru). I will send an engineer for on orbit engine refurbishing, kerbalism gives you a 1/4 chance of you not being able to repair, so max of 4 trips up and down before failure. Then i send it to kerbin either on nukes(on orbit refuel) or carry it as dead weight for grand tour. No need to actually do this multiple times, but no part is destroyed or lost or left on eve surface. Do you think this concept will work? tell me all your drag reduction tips so I can make it work. Thanks!