You might also want to add a downslope filter. Most filters only offer an upslope on the envelope, but a couple have an up/down switch (EHX QTron, EBS Bassiq, Soundblox BEF, MuTron, etc).
The Moog MF-101 doesn't have an up switch, but I get round this by taking a TRS lead from the Envelope out to the Cutoff in & get good results for 80's & 90's synth sounds & even a convincing upright bass sound (when used on it's own).