Feasibility & cost estimation: Local LLM (LM Studio) + Telegram Bot with multi-persona architecture (Option C approach)

Hi respectful devs,

I’m validating the feasibility and cost of a local LLM + Telegram bot architecture before hiring a developer.

I’m running a model via LM Studio and want to connect it to a single Telegram bot that supports:

• Multiple personas (10)
• Roleplay-style modes
• Onboarding-based user profiling
• Multi-state conversation flow

Current Issue

LM Studio only allows a single system prompt.

While I’ve improved internal hierarchy and state separation, I still experience minor hierarchy conflicts and prompt drift under certain conditions.

Previously I used two bots (onboarding + main bot), but I’m now consolidating into a cleaner backend-managed architecture (Option C in the linked doc).

Full technical breakdown here:

LINK: https://closed-enthusiasm-856.notion.site/BEST-solution-for-Prompt-Engineering-LM-Telegram-IT-need-2f98a5f457ac80ec93bbffb65697b960

My main questions:

1. Is this architecture technically feasible with LM Studio + Telegram Bot?
2. Would this require strong LLM expertise, or mostly backend engineering?
3. Roughly how many dev hours would this take (10 / 30 / 100+)?

I’m avoiding OpenAI APIs due to moderation constraints, so this must run locally.