Seller hasn’t decided on our offer for 2 weeks and the agent keeps stalling. Is this normal?

We put in a VERY heavily researched offer on a Grade 2 listed Georgian house (c.1830) with interior and systems from 1975. Last sold in 1971.

It's been kept tidy...but everything needs replacing and expenditure is needed in some big ticket areas. NOT a turnkey situation.

Been on the market 19 months.

Reduced once. Only one offer went to legals...buyer pulled out after survey with official statement from agency "too large of a project for their family".

The agent is catfishing the listing by anchoring the guide price low and redrawing the title boundary to include land from a 2nd title which is "available upon separate negotiation" and claiming the seller is "leaving the price for both up to the buyer".

Except buyers are not able to buy the titles a la carte. They must all go together.

Title 2 includes some collapsing ag buildings of asbestos concrete, sheep/hay pasture, and a 900sqft tenanted cottage in mid-poor condition. Basically old sheep farm.

We did a deep dive on due diligence.

Offered 16% above the guide price (already quite high) which aligned with local comps and condition of all structures and associated capital expenditure needed to repair and restore everything.

Initially agent said seller "wants something closer to [40% over the guide price]," preferred cash, and claimed there was "strong interest from other parties" (LOL the 500+ days rotting on the market says otherwise, but whatever)

We offered £25K more as a goodwill gesture but couldn't justify any further increase due to condition and location...there are many yellow/red flags signaling to tread cautiously around this potential Mega Money Pit.

We also shared a detailed 3 page PDF outlining our valuation showing we are not just trying to lowball pisstake.

The seller did not reject the offer...but hasn't accepted either.

It's been 14 days.

We've followed up twice looking for an update. Said the vendor is "weighing our offer against 2 other interested parties." But we know the other parties aren't proceedable.

It is literally a bird in the hand vs. two in the bush.

What does Reddit think our chances are? Is this a normal amount of time to decided? WWYD?

England.