If u have big budget u can replace upstart goblin and pot of desire with x2 pot of prosperity and if u want u can replace Windwich engine with Enforcer package but personally i like more windwich engine - crystal wing is very strong and cannot be destroyed by card effects (thanks to snow bell) also the eff of wind pegasus can be used to destroy spell/trap the same turn (before the summoning of crystal wing). Anyway, If u replace windwich engine with Enforcer package also is ok if u have the budget. Both engines are killer.
Personally i like the windwich engine because is not expensive and is working very well with both invoked or dogmatika engines.
About Maximus:
Everyone using 1 copy of maximus (me also in the past) but that's wrong, Maximus x3 is the best.
Normal summon whatever monster (even hand trap), summon almiraj - gardna - sp summon maximus - send in gy apcalone and ash dragon - set schism for winda - sp summon ecclesia in EP by ash dragon and add fleur in your hand.
I mention that combo because the most of the people thinks Maximus is brick or bad draw, but is not.
About Windwich engine:
Sp summon Windwich ice bell and use eff - sp summon glass bell and use eff - add snow bell and sp summon it from hand - summon wind pegasus using glass bell and ice bell - summon crystal wing using pegasus and snow bell.
The same turn u can normal summon Aleister for Raidjin or normal summon ecclesia (search by nadir) to add fleur in hand.
Note: if u have both Maximus and Ice Bell in hand then u have to choice between Maximus combo or windwich combo, if your choice is for Maximus then normal summon Ice Bell (or other monster) and summon Almiraj - Gardna - etc...
With enforcer package u will not be able to choice between maximus combo or Enforcer except if u don't have other appropriate monster in hand for almiraj, that's why personally i like more windwich engine because i have choice and it doesn't play bricks.
Small World is searcher for invoked and dogmatika engines, also for windwich.