It's time to enter the wonderful and frightening world of The Fall. The only constant of the band in its 40 plus year history was the legendary Mark E Smith. He was a somewhat demanding man to work with. There is a wiki page dedicated to the former members of the band. There's over 40 of them.
@Bapu Perhaps you should consider getting yourself some goats: https://www.theguardian.com/us-news/2019/oct/31/goats-save-ronald-reagan-library-wildfire
I note that you have tried tape sims, but have you tried the humble old Cakewalk FX2 Tape Sim? It can add some real beef to kicks.
Or, how about "cheating" and layer your kick with an electronic kick such as a TR909.
It's still showing as £5.99 for me.
It's pretty much Soundspot's MO to have inflated list prices but heavily "discount" them frequently. For example their Ravage distortion plugin has a list price of £169.99 but is currently on sale for £8.95. https://www.pluginboutique.com/product/2-Effects/30-Distortion/4923-Ravage. Nonetheless, they still seem like bargains*.
* Subject to https://discuss.cakewalk.com/index.php?/topic/7891-soundspot-union/&do=findComment&comment=71744