I was just about to chim in that the Bumble Bee from VFE is an awesome clone of the Slow Gear. I actually got the Modfactor to replace that and my tremolo pedal. I was able to fully replace the Bumble Bee. Set the TremoloPan to envelope, mix 100%, Optical mode, and the fine-tune the Sensitvity to your picking. I found the ADSR is much better fit if the Modfactor is last in your chain (usually guitarist do)
The Space is a much better product to enhance the swell than the Timefactor IMO. TimeFactor has swell preset that sounds awesome but it has that volume runaway effect so you would need a limiter (secret to Strymon's delays)
